Slubttly Share definition Flag Subtly slutty.Not your average in-your-face slut. This one come from a different league altogether. That librarian in a porno flick - subtly sexy, subtly flirty, subtly causing a stir in them dicks. Damn, she's slubttly. Slubttly by Gljy April 14, 2014 0 0 Get merch Get the Slubttly mug. Buy Now — $32.95 See more merch