Numb Hammer Share definition Flag When you have been sitting so long that blood has temporarily stopped flowing to your penis and it gets numb. HOLY SCHNIIIKIES! I can't feel my hammer! Dude, it's OK, you've just got Numb Hammer... Oh OK... :) Numb Hammer by minuccp March 27, 2009 0 0 Get merch Get the Numb Hammer mug. Buy Now — $32.95 See more merch