deli bath Share definition Flag When someone is passed out from alcohol, one proceeds to place the one who is passed out in the bathtub, afterwhich they are covered with old nearly rotten deli meats. Johnny passed out at the kegger, so we deli bathed him with rotten salami. deli bath by Juan Loco, C-Bear, Ranimal June 24, 2006 Get the deli bath mug.