look up any word, like basic bitch:
 
1.
when fucking a girl in the ass pull out spreading her cheeks apart...then while her asshole is gapped open proceed by stuffing your nuts inside her ass....this is a boston brown bag
drunk in boston picked up stripper bitch....saw gapped open blow hole and decided to cram nuts in her ass....creating the boston brown bag
by brown bag man September 09, 2010