1 definition by jujubebe

An acronym for Young And In Love, applied to those who are newly in love and are very, very obvious and sort of sickening in their overwhelming, overflowing lovey-dovey-ness, possibly including frequent PDA.
I saw Joe and Liz, and they're so YAIL, they're just unbearable.
by jujubebe December 30, 2010
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