when you cover up beer or alchohol wiht a brown paper bag even thought its even more noticable
guy1:yo wanna go drinking tonite?
guy1: idk lets just brown bag it
1 When having sex with a really ugly girl you put a brown paper bag over her head to cover her ugliness. Often in reference to girls with a butter face
see also: paper bag it
guy 1: Man, she is so ugly...
guy 2: I'd brown bag it.
Having sex with someone who has a brown paper bag over their head.
A: Damn, that girl is so ugly. You still going to take her home?
B: Yeah, I'll just have to brown bag it.
to use a disposable, usually paper, bag to carry something. used most commonly by grammar school teachers, where students are going on a trip and should bring their lunch in a disposable container (usually a plastic or paper bag) instead of a metal or plastic lunch boxes
kid: mom, i cant find my lunch box.
mom: there's no time to look, just grab your sandwich and brown bag it.
another way of saying to rough it
if you're out camping someone asks do you wanna sleeping bag you reply nah i'll brown bag it