SMB 

SMB means - Suck My Balls

Matt "Shut up bobs"

Bobs "Matt, SMB"

SMB by AdAgency March 7, 2007

SMB 

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.

I couldn't stand to look at him because his SMB's would jiggle whenever he walked.

SMB by Bobsquad August 31, 2005

SMB 

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.

Man, I was in woodshop and I had a SMB with sandpaper. It was awesome.

SMB by TheRealPecker April 13, 2005

SMB 

Stupid Mormon boy; a nickname given to AI3 contestant, Jon-Peter Lewis

That darn SMB, can't do anything right.

SMB by BWAH January 13, 2005

smb 

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

woot i won! smb mtfkr!!!

Translation: Great! I've defeated you. You Suck.

smb by D-Dawg3000 October 11, 2007

smb 

smack my biatch
The most cooperative, sexy, horny, shy, girl on efnet.

But still sux playing any game online

smackytobtch, smb, alison

smb by tkg March 21, 2005

smb 

Suck My Ballz

mostly used with instant messaging

Baribe: Dave you are a dickwad
Dave: smb

smb by dkuniva July 13, 2007