smash the back

A mans sexual actions on a woman, when he enters her vaginally or anally from behind in an over-excitable way.
The expression could be used best contextually in a shopping mall when your mates are cruisin' and he wants to describe ones finding of a bird across the way, he would like to "smash the back" out of, for the enjoyment of the conversation.

Oy brah... check out 3 o'clock, in line at Subway.. damnnnnn id be wise to smash the back out of that one .

Back in the back

Just whatever you want it to be

It's back in the back 😜

Back on that D

When you recently break up with someone, but your boundaries break and you have hard long sex.

Lady 1- I heard Emilee is back on that D.
Lady 2- I know its ashamed.

swollen in the back

Another way to say some one has a large booty

"Damn that girl is swollen in the back"

getting back into someones life

communicatng or attempting to reach out to a person

getting back into someones life is similair to apologizing

Tijuana back-cut

When felling a tree, a Tijuana back cut is when you do not cut a notch, just a straight back-cut.

Term only applies when felling entire tree

You don’t need a notch, just give it a Tijuana back-cut

Back 2 Back

The best song in Sonic Rush.

Also the best song in Sonic Generations 3DS.

Also the best song in Sonic Hysteria.

Spinnin' on the Turntables Back 2 Back!