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1.
The effects of crying (and/or swimming) while wearing black eyeliner.. when it runs down your face and you look like Alice Cooper.
"With all that eye liner, God forbid she starts crying.. she'll look like Alice Cooper."
(crying) "Who's Alice Cooper? Is she pretty??"

-Cougar Town

"She's totally coopering. Amateur move not wearing waterproof to a late night pool party."
by cougbow May 31, 2012
 
2.
The act of snooping the hallways of a school, to find students who are skipping classes.
He was coopering the hallways for us.
by Tired Student June 23, 2014