1) When one finds petty amusement in the pointless destruction of mundane objects, typically while intoxicated.
2) Drunkenly engaging in an act of absurd recklessness in order to progress and amplify the recreational activities of the night.
"Mop tosser" - one who destroys things while intoxicated
"Mop toss" - an event in which many objects are destroyed. Similar to a "shit show"
"Yo bro, me and Keith got hammered Wednesday and thought it was a good idea to toss the mop. Campus po almost caught us, but we ducked into 7-11 to grab some teriyaki jerky.