1) It's wild.
2) It don't Make no Child
3) It is most enjoyable with Mountain Dew and Bill's Mom.
I buttsexed Bill's mom like thirty time last night!
by The Pete November 14, 2003
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1. The best thing ever. Anywhere.

2. The act of getting royally screwed over.
1. Minaki gave Matsuba buttsex last night!

2. Dude! The repair man really buttsexed my computer this time!
by Oos! OMGWTFLMAO August 11, 2004
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Person 1: Wanna have buttsex?
Person 2: What is that?
Person 1: It’s like sex but in the butt.
by Bootystackin November 30, 2018
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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 31, 2015
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1) taking it like a man, in the behind.

2) doing wrong to someone, like backing into their new convertible and not leaving a note.
I totally buttsexed the shit outta that guy!

this fits both definitions.
by anniekin. August 10, 2007
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A "savory" treat selfish women like to reserve for special occasions
by Chico Rusty February 15, 2011
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serge loved buttsex a whole lot, especially with his guy friends
by shitwrecker May 29, 2006
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