Top Definition
Guessing the age of someone online based on how they act or what they say.
hottiebabe_69: hey asl?
1337geek: You're thirteen, aren't you?
hottiebabe_69: OMG!!!11! HOW'D U NO?!
1337geek: Gauge age. e_e
by Imakoo April 07, 2006
5 Words related to Gauge Age

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