SAB stands for a "Soft Ass Bitch." It's a person who has absolutely no balls and is the extreme definition of a bitch. Someone who will listen to anything you say usually because they cannot stand up for themselves. It can also refer to someone who is "soft" as in they over-react to situations such as being made fun of or being hit.
Ex. 1) "Are you really going to let him treat you like that? You're such a SAB"
Ex. 2) "Wow, Jimmy is such a SAB, every time someone makes fun of him he goes and cries in a corner."
Ex. 3) "I hate playing basketball with Jimmy because he's such a SAB, he always flops and acts like he got injured."
Ex. 2) "Wow, Jimmy is such a SAB, every time someone makes fun of him he goes and cries in a corner."
Ex. 3) "I hate playing basketball with Jimmy because he's such a SAB, he always flops and acts like he got injured."
by SABforlife March 31, 2015
Get the SABmug. 
by mankisser July 16, 2021
Get the Sabmug. The type of person you’d want for the rest of your life, can sometimes be distant but will love you with all his heart also, the most handsome boy, he thinks he doesn’t look good but in reality he’s the most handsome, loving, caring & LOYAL person. If you get him then you’ve got a Angel with you whose willing to do anything for you but don’t hurt him if you do then you’ll surely end up in hell.
by BlackAngel. April 5, 2022
Get the Sabmug. 
by Bernie is king August 18, 2016
Get the Sabmug.