n. & v.
n. 1 a a rounded protuberance, esp. at the end or on the surface of a thing. b a handle of a door, drawer, etc., shaped like a knob. c a knob-shaped attachment for pulling, turning, etc. (press the knob under the desk). 2 a small, usu. round, piece (of butter, coal, sugar, etc.).
v. (knobbed, knobbing) 1 tr. provide with knobs. 2 intr. (usu. foll. by out) bulge. with knobs on Brit. sl. that and more (used as a retort to an insult, in emphatic agreement, etc.) (and the same to you with knobs on). knobby adj. knoblike adj.
[ ME f. MLG knobbe knot, knob, bud: cf. KNOP, NOB(2), NUB ]