nutlobber Share definition Flag A crazy person. Named after inmates of institutions who cut off their own testicles and throw them over the fence to distact the nurses while they do crazy stuff. Mop in Ward 5, Maureen; there was a nutlobber loose this afternoon. nutlobber by Dina Diva August 17, 2016 0 0 Get merch Get the nutlobber mug. Buy Now — $32.95 See more merch