"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."
2.nounA jack of the same suit as the card turned up by the dealer. (See also nibs.)
"One for his nob."
3.nounThe glans penis, the sensitive bulbous structure at the end of the penis also known as the head of the penis. (Also spelled knob.)