Top Definition
Smug look used by bullshitters when their crap gets believed. Or when a bitch be pouting like she wants fucked in the ass.
Brian conviced her he's a pilot, check out his sphincter smile.

Shauna put her ass in my crotch and shot me the spincter smile, giggity!
by Big 'Hedonizm' Kev November 01, 2006
5 Words related to sphincter smile

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