Placing lube on a door knob then shoving it up another persons anus while receiving a reach around from the other participant. During the process the the other member should be knocking on something made of wood. (i.e. a door, table, chair, etc...)
Fred and Barney came home from the Blue Oyster and Barney gave Fred a sloppy knock wagon.
by Doin' the Bernie November 16, 2011