To grab another person from the back of the head and slam their face on the edge of an object. Like a shelf, table edge, or protruding ledge of some sort.
Person1: "Did you hear about the fight today?"
Person2: "Yeah I heard the Brad delwonked some guy off a bookshelf then a table."
Person2: "Yeah I heard the Brad delwonked some guy off a bookshelf then a table."
by Reco Enslava February 20, 2009