an oh-snap is a way of saying g-string, with out any of the guys knowing what you are saying. for instance, if you want to discuss what color every ones is, use the term oh-snap.
girl one: omg....u can TOTALLY see her oh-snap. what a slut.

girl two: HEY! IM WEARING AN OH-SNAP TOO!
girl one: oooh. 0.0 oh crap!
by lexerz twin February 18, 2010
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when you go to a place you want to go to but it goes horribly wrong
oh snap i gotta get outta here the volcano is erupting
by Apaoapaeowiskwiaow. February 21, 2022
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