Top Definition
Just below sexy, not quite hitting the sexy mark.
Guy1:That Girl is so sexy!
Guy2: No she isn't that sexy, she's under sexy.
by BadA$$Nou$$ September 15, 2015
sexy underwear
opposite: passion killers
"You better not wear passion killers to that 'business meeting'
"No, of course not. I am wearing undersexies
by papernoteswriter January 17, 2011
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