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1.
Term used for ecstasy.
At a club or rave: "Don't drop the thun thun."
by Guilloteenie August 16, 2013
 
2.
A term coined by the rap group, The Finnaticz, thun thun simply means "Ecstacy" or "X" as it is commonly known.
I said my money is green
And my thun thun is blue
And If I pop that biii

She gon pop one too
by Spoononymous August 16, 2013
 
3.
Some type of pill, ecstasy.
Im in the back hollarin, "Where the pill man at?" I need a thun thun.
by rekitralf August 17, 2013
 
4.
A thing that should never be dropped.
Charlie: hey Jimmy, look at the way that girl moves!

Jimmy: She better be careful though, make sure she don't drop that thun thun.
by Lord_OK August 17, 2013
 
5.
(noun) A drink that makes girls want to twerk.
Don't drop that thun thun, otherwise you'll have to make yourself a new one.
by BiggieTalls July 31, 2013
 
6.
A slang term for Ecstacy (MDMA) commonly used in the San Francisco Bay area of the United States. However, the slang term has become widely popular by the song "Don't Drop That Thun Thun" by Finatticz.
A: "You better not drop that thun thun."

B: "But, if I drop it, I can just pick it up, grab a bad bitch, and head to the cut!"
by CuppyCakes August 16, 2013