bush

To trap or ambush a person without their knowledge.

We about to bush Kelvin and take his money.

throwing crosses

Setting somebody up for something a group of friends might be doing illegally, of course. Double crossing or triple crossing. A real snake move. Will likely get you killed in most cases.

Hey D, where Mike at? Man Mike gone he got caught throwing crosses by being with them other dudes on the South side.

watch the bust

Looking out for authority or police. Basically being wary for somebody to break up a gathering.

Hey D bro watch the bust while we hit this L from last night.