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To makes plans or decisions and not follow through and/or cancel on others who are waiting and/or depending on the person
It's my birthday so you better not chris out on me. Everybody is going.
by mister magic August 05, 2010
The act of cashually up and leaving
1.Let's blow this crackstand and get the chris out!

2.Dude i'm tired of this, chris out.
by Chris Lu October 31, 2006