like a wet willy except you stick your finger in your butt instead of licking it
eww he gave me an illy
by EROCK February 3, 2003
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(adjective) Short for ill-proportionate or ill-proportioned. Used when there is an abnormal size ratio between different features on a thing or person.
"Check out that girl, her head is way too big for her body."
"Yeah, she's totally illy."

The Toyota Prius may be cheap on gas, but it sure is illy.
by tlc260 May 23, 2007
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see also ills ...just another slightly less obvious way of saying "pills"
"Hey man, do you know where I can get a couple illies?"
by The Talented Alan April 14, 2005
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illi is a VERY sexy girl and very popular, she’s basically a boy magnet!!
“she’s a leng one styl, she must be called illi init
by pineapplestarzzz June 1, 2020
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Nickname for Illadelph bongs (high quality, very expensive)
Yo bro u wanna rip a chop
Yeah I’ll grab the illy let’s go
by Chopqueen April 6, 2020
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a hard drug made from mixing pcp, and embalming fluid, than drying it on mint leaves or tobacoo, to be smoked,
by Sk8ordie May 17, 2003
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