A pathetic person that sees conspiracy behind every post in Craigslist's Rants and Raves. A Thumper believes all posts that offend him are the work of one person. He also thinks that all flagging is done by that same person. A Thumper posts repeatably, with a complete lack of creativity, desperately trying to rally the troops to the validity of his twisted view of reality. He fancies himself as a leader, but alas has no followers.

a very religious person. one who always refers to the bible in everyday conversation.

1. An ugly girl with bad skin
2. A bitch that's gonna go down in BUTT NASTY history
3. A manipulative, attention seeking, chicken legged girl with
4. A person that fucks like a rabbit
5. A manly look girl

A branch of obnoxious drivers who pack their cars with ridiculously powerful subs, and blast shitty, overly synthesized, "thumpy" rap music to assert their dominance. In most cases, thumpers can also be referred to as rattlers, due to the intensely low frequency vibrating shaky or loose parts in the car's frame, emitting an even more annoying rattling sound.

Thumper is a amazing person who thinks she is a loser which is a obviously lie she is the most amazing person.

A Thumper is a very beautiful girl that deserves the best out of everything,she is the nicest person with a great sense of humor, she is a guppy

When a girl is giving a guy head and right before busting a nut, he strikes down violently on her forhead with his penis ( you earn extra points for giving her the flying thumper) you have to get on a chair and jump off of it, giving the thumper extra force.