(as an adjectival or adverbial phrase, preceded by "on"): impeccable, precise, or masterful.
Martha's Thanksgiving decorations were on fleek.
She also cooked the turkey on fleek.
by wmmoller November 2, 2017
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A group of 3 or more whores. Typically seen in shopping centers, on the street, campuses, clubs, etc. wearing shorts with butts hanging out and low-cut tight crop tops. Other variations include yoga pants, clearly seen underwear, intentional side-boob, Jean short underwear, etc.
Terry: Aw man, look at all them whores! I can see their butt cracks from a mile away!
Steve: Yup, that's a fleek, alright.
by CharX12123 August 6, 2017
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A word typically used by younger generations. It means "on point", "cool" or "looking good".
by suede13 August 6, 2018
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Fleek is a gayass everytime he talks
by CatAttackOMG August 6, 2018
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