Car Jump
A sexual act practiced occasionally amongst foot fetishists, where the two participants, sitting and facing each other, both place a toe or toes from one foot into the others' mouth and then a toe or toes from the other foot into the others' genitals or anus.
After a long Car Jump with a lover one might find oneself with toejam in one's mustache.
car jumping
The act of checking cars for unlocked car doors. The person(s) commiting the act of "car jumping" then opens the door and steals whatever is in plain sight. Then you haul ass and get away from the scene of the crime.
Me and my boy once car jumped this one car and got a gameboy SP, baseball glouve, and a wet swimsuit we dumped, thats car jumping for ya!