Top definition
some one with a nice booty
guy1: dammnn did ya see that girls ass?

guy2: dude yaa it was such a JILLI!
by lkcjfs October 12, 2008
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Jul 2 Word of the Day
Someone people turn to when they're sad who makes them feel better.
Dude, I was so unhappy about my girl, until I spoke to my serotonin donor who really helped me feel better
by jonfurstn1 November 27, 2009
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2
That one friend who never talks, but who turns out to be the best one of all.
"You know he's such a Jillis."
"I know, he's an awesome dude"
by VictoireMcG December 27, 2014
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