To corrupt, ruin, sabotage, obstruct, destroy, willfully interfere with, damage, or otherwise totally destroy something.
Word Origin: CUPE 3903 labour union at York University in Toronto Ontario Canada. The union went on strike and cuped 50,000 students out of their semester. They lost all their tuition and no one graduated in 2008. The word evolved as a reaction to CUPE's strike. Essentially, York's student were cuped.
"Bro, wtf, you cuped the entire rug! THE BATHROOM IS UPSTAIRS MORON!"
"Yo, my car got CUPED this morning. Some guy keyed the entire right side down to the metal!"
"Idiot, you CUPED all the damn beer? How did you manage to drop the entire 2-4. What a jackass!"