When you lift the top off a toilet and take a shit in it, causing a disgusting job for the person who has to clean it up. First publicly referenced in American Pie; Beta House, when the guy takes a dump in the top of the john while yelling Hocker Knocker baby!
Dude 1: So did you score with that chick who took you to her house last night?
Dude 2: No man she was a total prude and I couldn't get any
Dude 1: So what'd you do?
Dude 2: I pulled a hocker knocker and ditched that bitch!
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."