Gillies is a term with origins in Scotland, it refers to someone of great intelligents and inpressive social awareness. This person may not be good at maths but will certainly beat you at any science.
Person 1: He beat me in the physics test

Person 2: He must have been a Gillies
by The Devil chicken September 21, 2020
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The hottes guy alive supper cool gets all the girls and play lacrosse
by Cool men March 4, 2022
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Referring to someone who goes to one training session, turns into a lapper and can't hack the pace and is hence forth known as bitch boy
Paul struggled at his first session but didn't want to become a gilly
by Nonsensical Scholar August 7, 2020
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An extremely fit boy with a 15 inch penis

Who has fucked every single fit girl in ur school and will shag all milfs
Hey daddy can you suck me uuuuugghbhh fuck me harder daddy gilly
by Sexxxytt fit boy December 4, 2021
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The best person you will ever meet. She is amazing and perfect. Find yourself a Sydney Gillis to love. Follow her on insta

@idefkwida
by Greggory biitch November 24, 2019
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