SBN

abbreviation for "Smooth Brain Nigga"
when u call someone stupid, having a smooth brain means that you are stupid.

- ay jamal i lost my car keys
- you are such a SBN

by giornolol November 15, 2021

SBN

Text talk for Lesbian.

"I asked Sharise out, but, she turned me down. God, I'm such a loser."

"No, it's cool, she's N SBN."

by Sex ED July 29, 2006

SBN

Stealing bitches niggas

my bestf sbn. OKURT

by Westside hoe August 29, 2018