Slam Van Share definition Flag A full sized van in which about 5 or more men take turns having sex with a woman. The men that are not having sex are either driving or allowed to masturbate Dude i fucked Jenn on the slam van that picked me up last night! She was TIGHT Slam Van by ME!!?!?! April 4, 2009 0 0 Get merch Get the Slam Van mug. Buy Now — $32.95 See more merch