1. (adj.) - generally bad; "gup" could apply to a person, action, object, situation, condition, etc.
2. (n.) - a person who might be considered rude, malicious, or unpleasant in any way.
3. (v.) - to go out of one's way to make another's life worse; to bother, taunt, bully, disrupt, provoke, etc.
- to let someone down or fail to meet certain expectations of oneself
4. (int.) - an exclamation of disapproval or discontent

Variations of "gup" include:
- gupped: having been screwed over by a person or an incident
- gup outta here: a phrase (slang) used by the speaker to indicate that he/she no longer enjoys or tolerates the presence of another individual or group and would be happier if the unwanted individual or group left the scene.
- gup that: a command/exclamation, simply meaning "hell no"

see also guppy
1. Aw man dude, we're out of funky juice... That's gup.
2. Dude, Billy stole my ball. The kid is such a gup.
3. Don't invite Joey... He's always guppin dude, I can't stand him.
4. *flat tire* GUP.
5. Joey: "Hey man, you wanna come to my ballet recital?"
Liam: "Nah gup that dude..."
6. You heard about Nate dude? He bought a loaf of challah for $5.49 at Whole Foods, and they only cost $3.29 at Panera. He got gupped hard.
by Buffalo Jones May 20, 2013
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by H@ February 22, 2017
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slang for weed in the revtt community, as created by allycat.
.:02:28:24:. * AllyCat is smokin gup too
.:02:29:54:. <SCiMiTAR> AllyCat, you are smokin gup? is gup better than weed? :D
.:02:30:32:. <Two-Bits> all the cool kids are on gup
by Ratimics September 14, 2008
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Someone that says they will do something then last minute backs out of it.
Matt promised he would come out tonight but he going to be sitting at home doing nothing, such a gup out!
by Man With Few Words February 17, 2011
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The sticky sauce that oozes out of the vagina.
Michelle's gup sauce stank!!
by OGSM February 25, 2021
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The sticky sauce that oozes from the fat upper pussy.
by OGSM March 2, 2021
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