1. The act of hitting either car in front or behind you in the process of parallel parking. Originating from the University of Cincinnati, located in Clifton.

2. Bumping fist instead of giving a high five during drinking games or after accomplishing a successful clifton bump parking job; used as more of a nonchalant celebration.
Q:"How did you fit in that spot?"
A:"You know, some elbow grease and a little clifton bump"
or
Gary: "Shit I just hit that car"
Frank: "Your fine, just a clifton bump"
by Craigger B January 2, 2009
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