cock-nommer Share definition Flag Variation of cocksucker; one who enthusiastically bobs the knob. Derived from the word nom of Lolcats fame. She's such a cock-nommer.You cock-nomming slut! cock-nommer by Your midget clone November 13, 2009 0 0 Get merch Get the cock-nommer mug. Buy Now — $32.95 See more merch