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It means you put the penis in the ass. Duh?
"Our Buttsex was good last night! Wasn't it Kaitoo?" Riely asked
by Dick Heads January 30, 2015
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2
Little Johny didn't want to get his girlfriend pregnant, even though she was on birth control. So instead of the mundane vaginal pounding that he would like to do, they just had butt sex.
by magic bananas February 20, 2011
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5
what me and allen have!
something that feels good to the butt/anus.

and it doesnt make you prego
"mmm i like it like that..put it there in my but. boy do i love buttsex"
by alexiskendra<3 October 23, 2008
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6
The act of lighting up a cigarette, smoking the whole thing, then using the dying embers on the cigarette butt to light up another.
Chain smoker: I was so stressed yesterday that i had butt sex six times in one sitting while smoking my camels.
by Fl3tch3r November 18, 2009
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