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Originally an insult, TWAMP (Typical William & Mary Person) was once used to describe the nerdiest of nerds at William & Mary. However, because the entire student body, is in fact, a friggin nerd, the term has been hijacked by students and now applies to the entire student body. If you've gone to school at W&M, you're a TWAMP. Sorry.
Sam: "Yo I spent 8 hours in Swem last weekend"
Alex: "STFU dude stop bragging about how boring your life is...fuckin TWAMP"
Sam: "Takes one to know one"
Alex: "Yeah but I remember the first TWAMP urban dictionary definition, you do nothing but go to the library every day"
Sam: "TWAMP had an urban dictionary definition before this?"
Alex: "Jesus you're helpless, go drink a beer kid"
Sam: "But I'm 19"
Alex: "Exactly, fuckin TWAMP"
TWAMP by treeeeeeeeeeeeeeeeeeb December 21, 2021
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A sac-o-weed that costs $20
'We bought a twamp, loaded up the bong, and puffed away'
Related Words
20 Dollars worth of weed, a 20 sack of weed
Boy 1: Want to buy this twamp?
Boy 2: Nah man i got an 8th at home.
Boy 1: aight, Peace
Twamp by bigremo907 July 20, 2008
formal definition: one gram of marijuana costing $20.

other uses: often used to refer to sack (of any size) costing $20. and sometimes to refer to a 20 dollar bill.
Pancho's been paying a twamp for them twamps. Guess no one told him 'bout them eighters or better yet them nor cal half eighters at a 20 spot. fool needa recanize.
twamp by Androp September 24, 2006
Hey let me get that twamp out ya.
twamp by YouNg DiCkiE MaNe January 22, 2009
Twamp Means 20. Doesn’t have to do anything with weed or money it simply stands for 20.
Commonly used by inmates, “I am serving a twamp for armed robbery
Twamp by Grateful Grace July 31, 2022
Hey let me get that twamp out ya.
twamp by YouNg DiCkiE MaNe January 20, 2009