Top Definition
Amazing in almost every way. This person is outgoing, crazy and has very little shame. Many people believe this is directly linked to the fact that it is spelt with only one L.

This person is someone you want to take everywhere, like a tampon, or condom or a can of silly string.
"Another word for the life of the party is totes Gilian"
"Dude, you're kinda depressive, you really need a Gilian in your life"
by The.All.Knowing.1 November 23, 2011
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