2 definitions by BSsubsforlunch

An abbreviation that stands for ‘Shut your mother fucking bitch ass up

This abbreviation is incredibly overused on Instagram, Snapchat, and most main stream social media sites
Mom: Hey Connor do u mind washing the dishes. I’m not home rn and I’m expecting them to be done by the time I get there ❤️

Son: Symfbau mom, I’m not washing those dishes. That’s your job you musty ass troglodyte 👶🏼🖕🏻
by BSsubsforlunch July 3, 2022
Get the Symfbau mug.
A baby raised on the highway we’re most accidents happen. They walk back and forth along the highway searching for their non-existent parents, and are incapable of aging.
Jim: BRO HELP!! IM ABOUT TO CRUSH A HIGHWAY BABY!!

Phineas: Do it.
by BSsubsforlunch August 16, 2023
Get the Highway Baby mug.