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1. car fuck
A motor accident in which the lead car has another car piled up on top of it from the rear, the result of a tailgater being unable to stop in time through being too close.

Resembles one car mounting another.
Witness: A kid ran out in the road and the lead car had to stop real fast, the car behind was unable to stop in time and really car fucked him.

Fireman: Well driver in the lead car has no worries now, the rear cars engine block has taken his head clean off.
by Blue Cawdrey Nov 23, 2004 add a video
2. car fuck
Wen you fuck in a car. May be in the back seat or may be in the front.(may cause acciedents if in the front due to interference)
On the way to disney world i cover jonnys eyes and car fucked his mother in the front seat.
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