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Acronym for Game Day Point Amplification Factor. A woman who wears a jersey to a sporting event becomes 1 to 2 points more attractive.
Trevor: good gracious that girl in the Griffey Jr. Jersey is attractive, easily a 9
Trace: Don't forget about GDPAF, she's probably only a 7 in reality, but still talk to her. Show her your magic trick with the underwear
Trevor: show her my magic underwear?
Trace: ( puts face in palm) you're definitely a zero on the murdery scale.
by Redlemmons March 11, 2018
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