Top Definition
When you attempt to Check In on FourSqaure, mostly when in motion in a vehicle as you are approaching your destination, and the locations are constantly switching positions on the hierarchy list. You click on one location, but as your finger hits the touch screen or select button, the location hierarchy changes
"Man, another CheckIsn't. I tried to check into Hooters, but checked into FashionBug Plus instead."
by bikescag March 23, 2012
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