1 definition by CGCS!

Butt Musk

The aroma emitted from your anal cavity when you've had one too many bean burritos from Taco Bell.

Mang, I shouldn't had that chimichanga--I've gotta let loose some wicked butt musk!

What is that? Did someone drop a deuce?
Nah, I think she just let some butt musk slip out.

by CGCS! September 3, 2008