1 definition by JakeBry

Top Definition
A person, or persons, whose presence at an event can be a determining factor as to whether or not you attend because the person's participation in the event would greatly diminish its enjoyability.
Vyatt: "Hey, some of us are getting together for a little outing, you in?"

Me: "Who's going?"

Vyatt: "Me, Barack, John, Hillary, Dennis..."

Me:"Hillay's a deal-breaker.."

Vyatt: "What?"

Me: "You know, something came up at work..."
by JakeBry March 28, 2008

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