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A bass-like sound, that sounds like any of the following:

* the sound of a pedestrian being hit by a car
* a funky bass-line
* the repetitive sound of a heartbeat

An apparel and gift company in Cambridge, MA, called "Thoomp!" was named after the onomatopoeic "thoomp" sound.
Thoomp!'s company logo (www.thoomp.com) suggests the primary definition listed here.
thoomp by Thoomp! August 19, 2009
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a badass word used by people who are too dope for normality
Dude those shoes are thoomp
thoomp by rager97 August 2, 2011
Related Words
The sound of the action that occurs in the beginning of having sex.
Bro I heard you smashed Hailey .

I had too bro she was so bad, i was all in there just like thoomp!
Thoomp by Silly diamond March 21, 2017
To insert something in an anus. Comes from the sound created.
I'm going to ram this in your ass. Thoomp.
Thoomp by Eric Thomas January 27, 2009
When u anally abuse yourself as you lay peacefully asleep and give yourself cuts inside your anus and shit blood.
He was so out of it last night he thoomped himself
Thoomp by Grozmotx July 20, 2019

heavy thompson 

A heavy Thompson is a blackjack or dice bet where the player increases his stake significantly in order to win money back from previous losing bets
Tony was losing but then placed one Heavy Thompson bet on the hard eight and got it all back

Dave lost a heavy Thompson bet at the end so went home skint
heavy thompson by GamblersRamblers January 4, 2014

Jack Thompson 

The guy who believes that games cause violence and starts many court cases against them. He is actually just introducing a scapegoat that kids can blame when they kill someone
Jack Thompson is really freakin moronic
Jack Thompson by Syco_Simon June 26, 2005
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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