Top definition
When a bunch of cars get stuck behind one slow moving car on a one lane road, the resulting pile up is called a car train.
Person 1: Hey we're making good time, we should be there in one hour!

Person 2: Fuck, there's a car train with ten cars up ahead.

Person 1: Shit, now it's going to be two hours -_-
by linkage1992 January 21, 2012
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