someone that is very pretty but makes sure to deny it when someone tells that person that they are pretty.
him: your pretty
her: oh no I'm not...
him: your such a gillie..
by sarah loser June 25, 2005
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dublin ireland term for A, condition or period of bad luck that appears to have been caused by a person by mentioning a specific thing.
1. what a lovely sunny day not a rain cloud in sight, don't say that you'll put the gillie on us.

2. c'mon ireland we are going to win the world cup, why would you say tha now you after putting the gillie on us
by jay86 July 3, 2012
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A person who is very kind and honest. He keeps everything truthful and whole. He loves all of his friends and keeps enemies near as well. He knows how to make people laugh, and knows how to break an awkward silence. He loves good music and has a couple of dance moves. He is awesome overall.
Gillis is the coolest kid ever!
by clappingdog November 6, 2011
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Having eagerness or showing enthusiasm towards something.
"I am so gilly for a night out."
"Wow, Anna is really gilly for Alex tonight."
by annapea October 17, 2011
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to stroke or caress someone in a suggestive or arousing manner, except both parties know that it isn't going any farther, differentiating it from a tease.
jimbob: damn you two were all over eachother tonight

fredrickson: yeah man no worries we were just gillying
by rainyface July 26, 2009
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An insult the equivalent of "idiot", "prat", "knobhead" etc. used in Gloucestershire, UK.
Sonny: I didn't mean to break it.
Josh: You're such a gilly!
by JoeyJoeJoington February 8, 2011
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