BSL 

Back Seat Legend- They get down in the back seat

“Yea bro, you know she’s a BSL”
“Turned your ex into a BSL”

BSL by Mopingskeleton February 5, 2024

BSL-4 

A laboratory that contains the deadliest viruses known to mankind. These viruses are Ebola, Marburg, Lassa, Hanta, Smallpox, Crimean hemorrhagic fever, Argentinean and Bolivian hemorrhagic fevers. So any disease that makes you bleed to death, you should wear a positive pressure suit not to catch it.

Walking into a BSL-4 lab without a space suit is basically a suicidal act.

BSL-4 by Gio Bandito February 25, 2015

Bum Spurting Limit (BSL)

The maximum capacity of bareback-anal-sex cum in the rectum before rupture. Note: 'BSL' not to be confused with 'Bachelor of Science in Law'

"quick! hand me a sandwich bag! i've reached my Bum Spurting Limit (BSL) "

Bum Spurting Limit (BSL) by Hakjab January 30, 2008

Bslur 

Beaner. A derogatory term used to describe Mexicans, presumably originating from the stereotype of Mexicans only eating rice and beans.

I can't believe Heather said the bslur out loud.

Bslur by texastumbleweed March 22, 2021

YNW Bslime 

YNW Melly’s younger brother. The kid is only 12 and he makes your mother’s rent in a day.

YNW Bslime is jumpin out a splak and hoppin out with a MAC.

YNW Bslime by Goat Homies December 8, 2019

BSLF 

The 4 tenets of supporting the homies:
Be happy for their achievements
Simp together
Listen more
Follow their finsta accounts

1: Hey man, you coming out tonight?
2: Can't, getting dinner with my bestie tonight.
1: Oh word, BSLF

BSLF by jm140 January 19, 2021

bslci 

Bank of Scummy Little Crooks International

BSLCI has screwed me again. They suck!

bslci by Old Time Portal Guy February 25, 2017