Described when 6ix9ine was in prison, (usually works if two men do this) they go in to the 69 position with no lubrication except saliva and cum. The end result is when they cum in their faces and make out afterwards.
"wanna try a Sloppy 9 my guy?."
"didnt that goofy nigga 6ix9ine do that in prison"
"yeah, shit sounds fun."