flag your backfield

When you stick your index finger in your partners butthole during intercourse while tucking your thumb and waving your remaining fingers.

I love to flag your backfield.

by CopperGate April 14, 2016

Detroit City Backfire

When you fart on someones pillow giving them pink eye.

I gave George a Detroit City Backfire, and now he has pink eye.

by Forgot-My-Name! September 21, 2010

Penis Backfire

When you strain to cum so hard you shit yourself

"OMG Miley, I must have done something right because just as he was finishing he had a penis backfire and made a huge mess.

by TMex1971 May 18, 2015

backfiber

When consuming a vast quantity of fiber comes back to haunt you.

"Man, it's called Fiber One for a reason! That second granola bar might look tasty but it is destined to backfiber."

by mishkachan August 1, 2009

back five

When someone offers up a high five and you give them the back of your hand instead of the palm. Could also be described as a "half a five."

A team scores and some dude says "high five man!" then as you are giving the high five turn your hand around to give the "back five." Maybe because you want to be cool with that person (not leave them hanging) but you're just not into it - it's like a weak high-five or a half-high-five.

by gczombie January 9, 2014

Midnight Backfire

When you or significant others fart wakes you up in the middle of the night.

My boyfriends midnight backfire vibrated the bed and turned the sheets into a stinky mass of air.

by Nana711 November 4, 2014

backfired

Verb; An attempt to fix something in which the fixing actually makes the situation worse for you. Common on the internet when an arguement "backfires" and makes you look stupid.

nub 1:My mom is not FAT! See! *insert link*

person 2: Dude! She totally is, your arguement totally backfired on you. Lol, dumbass.

by CommandoDude March 14, 2008