backseat meat

The act of someone eating or beating someone else's meat in the backseat of a car.

Stoner Dude 1 : Dude I was in an uber with my girl on the way to the weed shop and we got hella bored so I gave her some backseat meat and she took it like a boss until the uber driver made us get out of the car and we had to walk to the smokeshop naked!
Stoner Dude 2 : Dude no fuckin way!!! know take a hit from dis bong