A Nubb Nubb is A very Ugly Smelly and Small Thumb/Pinky like Penis. Usually attached to "Grown Men" who enjoy Wrestling and Treating 90% of women like garbage. Usually due to their inability to ever sexually please someone who identifies with the Female Gender.
Billy and His Nubb Nubb were terribly over-stimulated to the point of depressing Orgasm by Wrestlemania last night.