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1. OSFM
One Size Fits Most (A more accurate version of the saying: One Size Fits All)
Dude 1: Do condom come in different sizes or OSFM?

Dude 2: OSFM. Except magnums are bigger if you packin' heat.
2. OSFM
Oh Shit Fuck Me
OSFM i forgot my sweater at home.
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