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a combination of fly and sexy.
Yo, Bizzy's outfit was really flexy tonight.
by J.Biz May 30, 2008
combination of flex and sexy
when some one is or feels swole and sexy at the same time
1. "damn i feel flexy"

2. girl says to friend: "did you see jack today? he was looking so flexy"
by sexysnap January 20, 2014