When a person has one headphone in and one headphone out, trying to provoke someone to listen to the music with them.
by BannannaGun January 20, 2011

to be unsuccessful, usually in a competitive endeavor; to lose, often under unfortunate or exasperating circumstances.
Al Gore got half a million more popular votes than George W. Bush in the 2000 election, but since Bush won more electoral votes that sent Bush to the White House and left Gore to sniff a bicycle seat.
by Anthony Brancato August 23, 2003

when two men sit shoulder to shoulder right next to each other facing in opposite directions masturbate each other. The fact that eye contact is not made makes this move not gay.
by captain donkey punch May 17, 2010

During anal sex you grab your woman's arms and drive her around like a truck. Make sure you don't turn too hard or she wiil bend you in half.
Timmy: Dude! I was totally back seat driving your mom yesterday!
Jimmy: SWEEEEEEET! ME TOO!
Anonymous: I love to back seat drive.
Jimmy: SWEEEEEEET! ME TOO!
Anonymous: I love to back seat drive.
by ; D May 13, 2008

A Guy who when he gets in your car the first thing he does if sniff the back seat for pussy juice cause he nows u tapped the old ladys ass last night .
by Boogieman October 8, 2004

by Kung-Fu Jesus April 22, 2004

Receiving a blow job while defecating in the upper tank of a toilet. A combination of Upper Decker and Blumpkin, also know as Top Shelf Blumpkin.
by supergenious July 20, 2009
