An especially fine woman's butt.

A reference to the buttocks, usually referred to woman who have a bigger than normal ass.

A back is a non-alcoholic drink served alongside a shot. Backs are also sometimes called chasers. Sometimes a small beer served alongside a shot is considered a back.

verb. 1) to tell someone to "chill"; relax, fall back. 2) commonly used to shut down a stupid remark or completely end a conversation. 3) also used to completely shut down a stupid action another person does. 4) a more stronger form of the verb consists of a double back; i.e. "BACK BACK!". this phrase originated out of the vicinity of Mt. St. Joseph High School in historical Irvington, around the period of 06-07 school years. Its popularity has grown and continues to flourish amongst the Mt. St. Joseph Community and is begining to spread at a rapid paste. Although to term's weight itself is hard to grasp, one must take time as practice to completely master its effectiveness

see corresponding examples from definitions...

Being awesome, feeling awesome, or doing somthing awesome.

An elephant's penis.

Support. A term used to describe backup.