The consenting act of keeping your dick in a girl's vagina or asshole while sleeping.
Chad: Hey, babe, can I put my dick in cockbination tonight?

Stacy: Okay, but don't cum in me. All we're doing is sleeping.

Chad: Alright. I'll put it in your ass so it doesn't fall out.
by PenguinSlideMaster December 24, 2019
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A big nigga who lets his horse cock loose during the 40-yard hard
-I’m bouta do my 40 hope I don’t pull a Cockbine
by ChrisJones40 September 18, 2020
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