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.

a badass word used by people who are too dope for normality

The sound of the action that occurs in the beginning of having sex.

To insert something in an anus. Comes from the sound created.

When u anally abuse yourself as you lay peacefully asleep and give yourself cuts inside your anus and shit blood.