gilfillan 

A person who is shy and quite but when you get to know him he's a shit talker

Man, that gilfillan is weird

gilfillan by Heck yeah dude January 30, 2018

gillilanding

The act of hearing a joke and then repeating it louder to a larger audience thus receiving credit for initiating the pleasure of human laughter.

God damnit gray I literally told you that joke 5 minutes ago...... Thanks for Gillilanding me assface - __ -

gillilanding by Lance(blunt)Hogan January 7, 2017

Gilliland 

A shy and awkward person that usually requires a lot of energy to be around.

Girl: Ugh i just met the most awkward person today!
Boy: That sucks, they must be a gilliland

Gilliland by Chickalin19 July 22, 2010

Gililland 

Originally derived from Scottish origin, the term "Gililland", This word describes man on man love, also a burly bearish gay man, openly outwardly bearish gay. Although that is the primary usage of this word, there are several other meanings, such as a wildly gay big man. It has also been used to describe when someone is extremely outwardly gay and of large size, or someone who enjoys commencing in sexual acts with multiple other manly gay men.

Hey, that big super gay acting hairy man over there is very Gililland.

Gililland by Harlie Glick May 8, 2021

Gillilan 

Quiet Prick, usually high tempered.... Don't fuck with Gillilan

Don't be a Gillilan..

Gillilan by Tiddiecity November 29, 2017