Backy-back 

The two back seats of a station wagon which face the back end of the car. This type of seating was discontinued due to safety issues.

The Volvo station wagons have backy-backs from the late 90's. A specific example of this type of seat can be found in the Volvo 850.

Backy-back by brett5676 March 4, 2009

back back forward 

To dive and tackle someone to the ground. Named for Raiden's move in Mortal Kombat. Also Bob Nelson

Take my welfare check? BACK BACK FORWARD!! (while diving)

back back forward by DJ Illnutz March 28, 2003

back back 

clear the way or get out of the way.

back back by Mr. Terrence L. Trezvant October 12, 2003

back back 

A way of telling someone to back up, or move.

Whoa! Back back! Gimmie 50ft!

back back by abstrak8 March 14, 2005

I'm going going, back back, to Cali Cali 

Self explanatory.
If you don't like rap music, then get the fuck off my definition and get your bitch-ass to suburbandictionary.com

It is a song that you should know.

I'm going going, back back, to Cali Cali by Diego November 21, 2003

The back back 

The back back is the 2 seats in the back of a seven seat car

Your going to have to go in the back back

Can you pop up the seats from the back back

Can you help me get out of the back back

The back back by FlyingTuna August 14, 2019

back back 

it means i am a chicken

hello i am back back

back back by keli07 November 8, 2019