Top definition
Occurs when people spend way too much time infront of the computer chatting and eating snacks. The ass gets bigger and contours perfectly to the chair.
From behind it resembles (___|___)
person 1: I'm hoping to land me a job staring at a pc all day.
person 2: Yeah that would be great, but you'll end up with chat ass.
by piranicon November 07, 2004
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