Jamy Jams Share definition Flag The act of trying to "get in someone's pants", or having sex. in this case getting in someones pajamas I was trying to Jamy Jams with that bitch. Jamy Jams by Redss 449 March 7, 2009 0 0 Get merch Get the Jamy Jams mug. Buy Now — $32.95 See more merch