The act in which a man poops on a hardwood floor, and a woman sits in his poop. He then sticks his penis in the woman's mouth and runs around in circles like a floor buffer.
A girl who sits(lies, whatever) between two dudes to remove any homosexual fears. Often in a car, on a couch, or on a bed. (in which case massive gropage will afflict said girl)
When you don't pass the car in front of you for the sole reason of if there happens to be large wildlife on the road (deer, elk, moose, etc) he collides with it and not you.
Passenger: "Why aren't you passing him? He's only going 50."
Driver: "He's my deer buffer."
A person who acts as an intermediary in group sex. allowing a person to to be in a sexual act with another person without being in physical contact with them.
"I slept with Karen last night!"
"Dude, isn't she a lesbian?"
"I used Jessica as a fuck-buffer."
"I heard you were at Mike's orgy last night. Doesn't he have the clap?"
"Yeah, but I used Lillith as a fuck-buffer so it's all good"
Dave: Have you read Freakonomics? It's awesome. I'll lend it to you if you fancy
Arnold: Not yet; I've got quite a few books queued up at the moment, but if it's as good as you say, maybe it can skip the book buffer.