Top Definition
Popular, one-on-one childrens game in which one player lies on his back and pulls his knees to his chest, while his opponent gets on his knees and smells his butt. The object is to quit as soon as your butt gets smelled, and/or before you have to smell a butt.
"Hey Mikey, you wanna play smell butts? OK, you go first"
by Pete Bergie December 18, 2007
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