BBSD 

big balls, small dick. people with big testicles and a small penis are known as having BBSD.

guy 1:hey i heard you have BBSD.

guy 2: no i dont!

BBSD by MBP! May 21, 2011

BBSD 

Butt Bumpin Shit Dick

The act of inserting your dick into an anus, covering it with shit.

Hey guys, I just got dumped. I want to BBSD with all of you!

BBSD by SeaFoam May 20, 2010

BBSD 

BBSD is a big boy, small dick

This includes all types of big boy such as a large man, tall man, muscular man, generally big, etc. the man's bigness is belied by his small penis.

"Bradley is cute but he's a total BBSD, you wouldn't expect it with how big the rest of him is"

BBSD by Roosmav July 20, 2024