In alpine skiing, being in a position where one's center-of-mass is shifted toward the tails of the skis instead of toward the tips. Results in reduced control, adaptability to changing terrain, and ability to make a full turn.

A term used to reference a person's butt, particularly a woman's butt.

Your ass.
A place where homos live for.

Backseat is when something is horrible and sucky. This makes perfect sense because no one likes to sit in the backseat, and sometimes nasty things happen in backseats. This will catch on in the near future.

The backseat is usually for little kids, immature teens and drunk adults. The backseat is for party's, arguments and socializing and sometimes sex. All around the backseat can be a great place especially on school buses.