Top Definition
Engaging in anal sex with a butterball (A morbidly obese person) This can result in extreme depression, suicidal thoughts, loss of hearing, sight, and in some extreme cases: losing the ability to feel anything.
Friend 1:Did you hear what craig did?
Friend 2: No what did he do?
Friend 1: He butterball buttfucked Lisa last night!
Friend 2: Ew thats gross man!
by Jfeldster December 11, 2011

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