A mutated chromosome that makes someone update google chrome every time a new version comes out (Prounounced krome uh zome)
Person1: Ooh! The new version of google chrome came out! I need to download it!
Person2: Wow, you have a Chromesome!
Person2: Wow, you have a Chromesome!
by X-Ychromosome July 13, 2012
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