When you are performing anal sex on a girl, and notice she has a pimple/blister/zit on the inside of her ass crack, you do her until the pimple/blister/zit pops. After doing so you suck the puss out of it. Delicious.
Mmmmhmmm i just gave your sister a brazilian blister and it tasted great!
by brazilianbrett April 01, 2007