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5.
To thwack and to whomp simultaneously.
J.C. sure could thwomp that bass guitar!
by Eckhard Gerdes December 19, 2006
 
1.
a large rock with mario 64
if u are in tick tock clock, u must stomp on the thwomp
by Mats Willemsen August 08, 2004
 
2.
The correct collective term for a group of gay men of a certain age comprising 3 or more members.
From the Super Mario enemy of the same name.
"I saw C--- walking down the street with a thwomp of moldering old queens hanging on. That guy'll do anything for coke."
 
3.
To beat someone so badly at something that they are disgraced.
Oh man! I just thwomped Charlie so hard! He might just as well kill himself to hide the shame I just brought upon him!
by CanadianFlash September 12, 2009
 
4.
1. Sort of like a crude synonym for "thunk", it is a very rough, illiterate term to hit or brutishly yet carelessly cuff them with the side of a hand or fingertip.

2. A Thwomp is one of the classic Mario Bros, usually found in the Bowser Castles. They come in various different sizes, and are enemies that cannot be defeated at all with neither a jump, Koopa shell, or fireball. If Mario comes near, then it comes crashing down on the designated spot. The best way Mario can get past it is to run/dodge while the angry, strained-looking Thwomp is in the process of moving back up to it's original spot.
1. I swear, if that dude comes near me one more time, I'll thwomp him right on the head!!

2. I had just barely managed to dodge that Thwomp before it came crashing down again, but then, the time to complete that level had just run out.
by The Eavesdropper February 01, 2008
 
6.
Twenty dollars worth of marijuana.
"Dude, I gotta pick up some thwomps from my dealer today; I've only got two thwomps left!"

"Shit, son."
by vinfiz August 06, 2009
 
7.
To skool someones ass, especially in volleyball
I Thwomped Jordan in volleyball
by Willismyname November 03, 2010