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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A somewhat uncommon medical condition in which the afflicted party is hopelessly addicted to any of the butthole pleasures.
John was diagnosed with a severe case of buttsexitis, but he kept claiming that it was not about the butthole pleasures.
by ThreeTwelve November 3, 2007
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'im lovin it'? Hmm,what could 'it' be? HARDKORE BUTTSECKZ!
by 0niTTRay January 8, 2004
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to stick ones penis through the butthole
by livegrenade December 4, 2015
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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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Anal sex, only unexpected. If you were suddenly penetrated anally, you'd be surprised too.
by Forced anonymous March 30, 2006
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a demon who has buttsex with you while you sleep
OMG CARL THINK I WAS ATTACKED BY A BUTTSEX DEMON LAST NIGHT!
by aliza14 April 22, 2020
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