20 Slang Terms for Coffee


There are many names for coffee, with some people even making up their own pet names for their beloved brew. Although the origin for many of these slang terms might be unknown, they are still a great way to proclaim our love and adoration for the beverage that gets us going every day!

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Slang Terms for Coffee

  • 1. Joe (or "Cup of Joe")
    • One popular theory connects it to Josephus Daniels, the Secretary of the Navy, who banned alcohol on ships in 1914, leading to increased coffee consumption. Sailors might have sarcastically referred to it as a "cup of Josephus," which eventually shortened to "cup of Joe.". However, this theory is disputed, as the term "cup of Joe" didn't appear until the 1930s, after the ban. Another theory suggests "Joe" is a shortened version of "jamoke," a portmanteau of "java" and "mocha," two popular coffee types. A simpler explanation is that "Joe" is simply a common name, and coffee became known as the "average man's" drink. Additionally, some sources say Joe Martinson, who founded Martinson Coffee in 1898, might have popularized the term through his coffee shop. 
  • 2. Dirt (Want to try something dark like dirt? Give the Black Wolf a try!)
    • The nickname "dirt" for coffee doesn't have a widely documented or formal origin story like "cup of joe". However, it's most likely inspired by the appearance of coffee grounds and mud or dirt. Another reason could be the association with "dirty coffee," a layered espresso drink, where the espresso shots swirl into the milk, creating a visually "dirty" appearance. It still tastes much better than dirt, though!
  • 3. Mud
    • The origin of the slang term "mud" is likely the same as "dirt," stemming from the muddy/dirt-like appearance of wet coffee grounds. Another theory suggests it might stem from older brewing methods where the grounds were not fully filtered out, resulting in a less refined, muddy appearance.
  • 4. Java (Have you heard of Java One?)
    • The term "Java" became a nickname for coffee way back in the 1600s, when the Dutch established their successful coffee plantations on the island of Java, Indonesia. As coffee from Java became popular, the name "Java" became associated with the beverage itself, eventually being used as a general term for coffee. 
  • 5. Brew
    • The term "brew" when referring to coffee stems from an old English word, "breowan," which means "to prepare by mixing and boiling." This term originally applied to the process of making various beverages, including beer, and later extended to include tea and coffee. Brew is most commonly used to refer to hot drinks such as tea in the UK.
  • 6. Cuppa (Embrace the essence with a lovely medium roast, the UK's most popular coffee!)
    • "Cuppa" is another popular colloquial slang term in the UK, and can refer to both tea and coffee. It is a shortened version of "cup of," and is considered a casual and informal way to ask if someone has had or would like to have a cup of coffee/tea.
  • 7. Go Juice (Need to go? Consider a jumpstart for your day!)
    • The nickname "go juice" for coffee originates from the caffeine content in coffee, and its ability to provide a jumpstart that gets you going. This slang term highlights coffee's stimulating effect, particularly when consumed in the morning to help people feel more alert and awake.
  • 8. Jitter Juice
    • The origin of "jitter juice" is the same as "go juice" but with a fun alliteration that emphasizes one of the side effects of caffeine, known as the caffeine jitters. High levels of caffeine can leave you feeling twitchy or jittery. The word "jitter" is of unknown origin, but started in the 1920s.
  • 9. Bean Juice (But what about leaf juice?)
    • Coffee is made from freshly roasted coffee beans, as is recognized by many. Bean juice is a fun reference to how humans have been juicing fruits and vegetables for ages, and now we're "juicing" beans to make our favorite brew. Note that coffee beans are not actually juiced, but percolated to achieve that flavor we know and love.
  • 10. Brain Juice
    • "Brain Juice" is a relatively modern slang term for coffee, and playfully references the stimulating effect of caffeine on the human brain. Caffeine can help with feelings of alertness and focus.
  • 11. High Octane
    • This name most often refers to especially-strong roasts that promote a bolder, "high-octane" taste and caffeine content. The origin is unknown, but believed to be much more recent!
  • 12 .Wakey Juice
    • The phrase "wakey juice" for coffee, while not as widely used as "cup of joe," bases its origins in the stimulating effects of caffeine. It's a playful, informal term reflecting the drink's ability to awaken and invigorate, much like the more common "wake-up juice" or "brain juice"
  • 13. Morning Jolt (Something like this)
    • A playful term that highlights coffee's ability to wake you up with a "jolt" of energy. It evokes the image of an instant kickstart to your day, often used by busy workers or students needing a quick mental boost in the morning.
  • 14. Liquid Energy
    • This nickname emphasizes the functional power of coffee as a drinkable energy source. It’s popular among fitness enthusiasts, professionals, and students who rely on caffeine to stay sharp and energized.
  • 15. Caffeine Infusion
    • With a more clinical or high-tech vibe, this phrase jokingly frames coffee as a necessary treatment. It’s often used humorously by those who feel they "need a dose" just to function properly.
  • 16. Cupped Lighting
    • A poetic and intense metaphor, this phrase captures the raw energy and bold flavor of a strong brew. It’s perfect for describing espresso or high-octane roasts that feel almost electric in effect.
  • 17. Leaded and Unleaded
    • Borrowed from gasoline lingo, “leaded” refers to regular coffee (with caffeine), while “unleaded” is decaf. This retro term is still used in diners and among older coffee drinkers with a sense of humor.
  • 18. Rocket Fuel (Strong Coffee)
    • A term for extra-strong coffee, often dark and heavily caffeinated. It's used to describe brews that feel like they'll launch you into space, especially those consumed during long shifts or late-night study sessions.
  • 19. Worm Dirt (REALLY Strong Coffee, like our Super Caffeine)
    • A gritty, tongue-in-cheek nickname for extremely strong or harsh-tasting coffee. Often applied to ultra-caffeinated blends or instant brews that prioritize power over flavor.
  • 20. C8H10N4O2 (Caffeine Molecule)
    • The chemical formula for caffeine, used as a nerdy or science-savvy way to reference coffee. Popular on mugs, T-shirts, and among caffeine addicts who wear their love of chemistry and coffee proudly.

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