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3. Thoomp
To insert something in an anus. Comes from the sound created.
I'm going to ram this in your ass. Thoomp.
1. thoomp
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.
2. thoomp
a badass word used by people who are too dope for normality
Dude those shoes are thoomp
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