nob Noun the head ("somewhat archaic") Used in one version of the Nursery Rhyme: Jack and Jill went up the hill to fetch a pail of water; Jack fell down and broke his crown, and Jill came tumbling after. Up Jack got and home did trot, as fast as he could caper; to old Dame Dob to mend his "nob", with vinegar and brown paper.
nob Noun a jack of the same suit as the card turned up by the dealer
nob Noun The glans penis, the sensitive bulbous structure at the end of the penis also known as the head of the penis. (also spelled knob)