nom-de-knob-twiddle Share definition Flag A name of convenience used by ham radio aficianados, while they roam the airwaves. This is ZL5371, aka, fathead, what's your nom-de-knob-twiddle buddie? nom-de-knob-twiddle by mangovega October 20, 2010 0 0 Get merch Get the nom-de-knob-twiddle mug. Buy Now — $32.95 See more merch