verb. (inner-tubing) Inner-tub-ing- When a man holds open his butt hole while another man shits down it.
This one time Hitler and I were fish hooking on a boat, while also getting kinky with some worms, and we began innertubing with him doing it down me.
by Me45847383974 September 25, 2010
The fat stomach of a woman that hangs over the belt (sometimes referred to as a Dunlap) so that it looks like she is wearing an innertube underneath her shit
(looking at a girl with this particular issue) yo bitch, no one's goin swimmin, whats with the fuckin innertube!
by CuntPunt October 30, 2007
A large fart housed in the large intestine, often rumbles. a very long and loud fart that sounds like a flat tire on the road.
I got an innertube going on in my belly. that wasn't a fart it was an innertube. I thought I had to take a huge dump, turned out it was an innertube.
by Busta Cherries August 7, 2008
Exaggerated lips, such as those seen on an African. Also can refer to overdeveloped labia minora/majora, a condition which can develop on the vulva of a super-experienced ho, indicating a high-mileaged hole.
by Etch September 8, 2006