This is the abbriviation for "Saggy Man Boobs"
You know when guys have too much boob, and they sag? Well then your guy has SMB's.
You know when guys have too much boob, and they sag? Well then your guy has SMB's.
by Bobsquad August 31, 2005

Sporatic Masturbation Bout - When you just can't stand it anymore. It doesn't matter; back of the classroom, bathroom, under the dining room table, shower, garden, playground, driving.
by TheRealPecker April 13, 2005

by BWAH January 13, 2005

literally suck my balls, but used more like a taunt. Mainly used by teenagers and adults that havn't got a job yet.
by D-Dawg3000 October 11, 2007

smack my biatch
The most cooperative, sexy, horny, shy, girl on efnet.
But still sux playing any game online
The most cooperative, sexy, horny, shy, girl on efnet.
But still sux playing any game online
smackytobtch, smb, alison
by tkg March 21, 2005

SMBS:verb: Suck my ball sack. Its a form nicer thzn saying FUCK YOU!, Or saying the literal "suck my ball sack". SMBS (sounds like SMIBS) is a lot "nicer" but still gets the point across.
by The wordster October 3, 2008
