push back

The industry lingo for the action of pushing a commercial jet back from its gate. Among crew members and others working directly at the gates the term can be shortened to simply "push".

long form:
"Ground Control, United 1482 is ready for push back and taxi."
"Hurry up...RUN.....crap, look, they've already pushed back"

short form:
"Ok everyone we need your tush in a cush so we can 'push' and get this Boeing going!"

chirp back

to holler back to someone using a nextel, making it make a "chirping" noise.

shawty chirp back to muh call.

Back-mouth

To talk back to someone while being a smart ass. Something an old fashoned grandma would say, along the lines of "Dont sass me"

Christian was very hateful on the phone with the nurse, so she yelled "Dont back-mouth me!" and hung up on him.

back seat

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.

I hit that rut hard and got thrown into the back seat.

swallow back

1. The term represents giving a blow job and taking in the semen

I told this chick to swallow back, and she took it all.

Banana Back

The arch in some chick's backs when standing, showing off their ass. The chick's back curves like a Banana, making her ass appear to be more pronounced than without a Banana Back.

A: Hey, Katie has a nice Banana Back! I could stare at that all day!

B: Yeah, I know! that ass is seductive!

out back

a place suck as a car, back yard, or room were the person has designated it as their "make-out spot."

Lets go "out back" and get our freak on.