Numbgasm Share definition Flag (noun or verb) The empty, meaningless orgasm one has following the 5th round of masturbation on a boring Sunday. "The 800mb of porn I'd downloaded had lost its novelty value and I totally numbgasmed." Numbgasm by Hooty McShooty February 20, 2009 0 0 Get merch Get the Numbgasm mug. Buy Now — $32.95 See more merch