Mildew Slammer Share definition Flag Having sex with a girl who has vaginal fungus. "Dude, last night I got a mildew slammer, now my dick's growing penicillin!" Mildew Slammer by Moldy Vag July 2, 2009 0 0 Get merch Get the Mildew Slammer mug. Buy Now — $32.95 See more merch