Dirty Joe Share definition Flag A Dirty Joe is when you're performing anal sex and the recipient farts on the penis of the giver. A guy is doing a girl in the ass and during the process she farts on his dick; giving him a Dirty Joe. Dirty Joe by Tony Tollefson February 1, 2008 0 0 Get merch Get the Dirty Joe mug. Buy Now — $32.95 See more merch