anything that hangs so as to play loosely, or with a short abrupt motion, as at the end of a string; a pendant; as, the bob at the end of a kite's tail.-a knot of worms, or of rags, on a string, used in angling, as for eels; formerly, a worm suitable for bait.-a small piece of cork or light wood attached to a fishing line to show when a fish is biting; a float.-the ball or heavy part of a pendulum; also, the ball or weight at the end of a plumb line.-a small wheel, made of leather, with rounded edges, used in polishing spoons, etc.-a short, jerking motion; act of bobbing; as, a bob of the head.-a working beam.-a knot or short curl of hair; also, a bob wig.-a peculiar mode of ringing changes on bells.-the refrain of a song.-a blow; a shake or jog; a rap, as with the fist.-a jeer or flout; a sharp jest or taunt; a trick.-a shilling.-to cause to move in a short, jerking manner; to move (a thing) with a bob.-to strike with a quick, light blow; to tap.-to cheat; to gain by fraud or cheating; to filch.-to mock or delude; to cheat.-to cut short; as, to bob the hair, or a horse's tail.-to have a short, jerking motion; to play to and fro, or up and down; to play loosely against anything.-to angle with a bob. see bob, n., 2 & 3.