Top Definition
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.
by tacticalhampster September 28, 2012
Oh Shit Fuck Me
OSFM i forgot my sweater at home.
by XMIGGY January 24, 2012
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.