by Nsalsog November 03, 2010

by Academic Type January 23, 2005

by badbitchhhhhhhhhhhh December 22, 2010

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
