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Man who's got the rod and the bod, makes your insides feel abused after getting fucked, someone you have wet dreams about, a DEREK. Usually signified by loud flapping of the ballsack and thuderous noise,
Aww man i just slept with derek last night my asshole hurts

Yea i hear hes a real thunderpounder, did he rip ur asshole open this time?

(kids outside a classroom)HOLY CRAP i think Ms. Shields is getting thunderpounded, shes screaming likea hor and there is a loud flapping going on
by DKMILLER36 March 09, 2010
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Someone who leaves your innards feeling abused. A guy who is often portrayed as a douchebag but rarely is one. A hot guy who is great in bed.
Guy 1: I was talking to Annie yesterday, she said she hadn't been able to walk, and was feel like crap

Guy 2: lol, apparently im a Thunder Pounder and i didn't even know it haha
by Derkalurk March 02, 2011
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