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1. Slender, svelte, and extremely georgious.

2. A girl or woman with the above attributes
That girl is perfectly waify. Or, Wow what a very nice waify!!!
by Cuban B November 20, 2005
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A malnutritioned sauntering sodemite that looks like a child
Rob: I like my men waify. Nathan, you need to lose 40 lbs and remove all of your hair before we can hook up again
by Slippy2178 April 23, 2019
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