When someone does something to ruin or lessen the fun of a night out.
"Man, Adam is really shitting the couch because he brought his girlfriend along tonight."
by GucciManeDaFlip February 16, 2010
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When a girl takes it in the rear, and when the man pulls out the girl literally takes a shit on the couch.
"Hey, did you hear? Tanya shit the couch last night?"

"Really? Tyrone must've gave it to here good then"
by pinohkio December 16, 2011
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When you're so intoxicated that you pass out butt naked on the couch.
My boy Nike was shit couched last semester and my other boy got a picture of that shit!
by J-Boogz Nestis May 1, 2009
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