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Has the power to control a situation just by the power of their mind. They also can tell if someone is lying or trying to fool them or someone else, and it is easy for them to find out information by making people tell them with out them being aware.
"As I lied I could tell he knew something wasn't right"
"Did he look at you like a Gilfoyle would?"
"Yes, I think he might have been infact"
gilfoyle by Chocolate tear. January 3, 2014
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Guilfoyle 

Man with a large cock, whom women are uncontrollably attracted to.
Man, that dude is a real Guilfoyle.
Guilfoyle by SandraD98656 September 18, 2013
Related Words
A shitty ambulance service where money is prioritized over safety where ambulances are taped together and the only way to get promoted is to sleep with the general manager
Why would you ever work at guilfoyle when AMR treats you so much better
Guilfoyle by nysems December 30, 2025

Casey Guilfoyle 

Goes by many names. Casey Tinfoil, KFC and Casuiiiii. No matter what name you assign him he will always have impeccable drip with his extra vest under his suit jacket and a gold pocket watch, truly the best dressed at our school. He also faced severe scrunity from his religion teacher when he proudly displayed a shotgun shell on his desk.
casey guilfoyle are you listening to green day
Casey Guilfoyle by CheeseTweeze September 8, 2023