Top Definition
Genius and Brilliant. Best of both worlds. :)
Oh my gosh, your so Gilliant!
by Jessica is amazing January 20, 2008
A word to describe someone or something that is both genius and brilliant.
Man, whomever made that bed intruder video is gilliant.
by Cam-X October 05, 2010
COOL, SMART, INTELLUCTUAL, LIKES TO HANG AROUND, pretty much the coolest person in the planet
Gillian T is the best!!!

n don't front (DENY)
by gillian February 07, 2004
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