look up any word, like dirty sanchez:
 
1.
sasm means i am. like I AM going out. or I AM ready.

oh yeah, sasm going to the fashion show monday night.
by sarajooo. May 18, 2008
 
2.
a sexyass sexy mommie...someone who has kids...and still look damn good!!
Man...Look at that SASM right there!!
by Latoya Smith January 10, 2008