Top definition
The measure of how good a party is going to be, depending on who is going to be there.

The right mix of people to make a party or a poker game tolerable.
Dennis: Hey Mark, you coming to my party tonight?
Mark: What's the cool factor?
Dennis: Jeff, Bill and Sean will be there.
Mark: Good

I'm going to cash's house tonight to play holdem, the cool factor is going to be off the charts!
by cheeks1128yahoo February 03, 2010
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