dip and switch

1. To leave abruptly (informal use of dip)

2. To remove used chewing tobacco from one's mouth and share it with someone else

3. The act of making out while simultaneously hitting off a shared clump of chaw

1.
Noah: Imma dip and switch
Chris: Aight, later my B

2.
Dale: Hey man, I'm out of dip.
Nick: (spits) Wanna dip and switch?
Dale: I sure would!

3.
Dylan: Did you see that redneck couple dip and switch in the hallway?
Owen: Yeah bro, it was disgusting!