Get'cha Bars Up

I've seen it used to mean that a rapper needs to step his/her game up, or that someone plans to have sex.

Strong Arm Steady; "no cash, no rims on yo brand new truck, ya need to listen to us an' just GET'CHA BARS UP..."

"Yeah dog, imma get my bars up on Jessica TONITE!!!"

Skateboard P

Pharrell William's AKA.

"Matter fact, you should take four B
And think before you fuck wit lil Skateboard P"