An adjective that describes sonething that is crappy. Another word for jank, crap, or stupid. Comes in the form of "gwumpy", "gwumpish", "gwumping", or "gwumped".
1. Damn. The movie is sold out. Thats gwump.
2. That girl is so gwumpy all the time.
3. Bobby: "Im gonna fail this test! Im gonna fail high school and die." Tom: "Shut the hell up! And stop being so gwumpish around me!"
by Daddy Fat Fish July 20, 2010
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A or an innocent looking woman who is very annoyed or bothered by something or simply in a mood. It is derived from the word grump which is on a larger magnitude of irritation.
Man my girlfriend sure is a gwump today
by ironduece0311 March 06, 2017
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The sound of a female breast hitting your arm.

Verb.
The act of a breast hitting your arm.
Dude, she totally gwumped me.
by Sincomatt November 06, 2008
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A word used to describe your anger for someone/something.
The cat meows at his owner.
The owner gives the cat food.
The cat sits in front of the bowl, confused as to why his owner gave him food instead of the nuclear launch codes he asked for.
"Gwump" he thinks to himself, visibly angry.
by The Green Cap Lad November 02, 2020
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