noun

1. Brit., Dialectal a hanging cluster
2. any knoblike hanging weight or pendant a plumb bob
3. a short curl or knob of hair
4. a docked tail, as of a horse
5. a short hairstyle for a woman or child, with the hair of relatively even length all around
6. a quick, jerky motion, like that of a cork on water
7. 1. a float on a fishing line
   2. clustered bait used on a fishing line
8. a type of Scottish dance
9. a quick curtsy
10. ☆ a bobsled or bob skate
11. Archaic a tap or light blow
12. Archaic a short refrain in a song

Etymology: ME bobbe, hanging cluster; bobsenses -, < the v., bob < bobsled

transitive verb bobbed, bobbing bob′·bing

1. to knock against lightly; rap
2. to move, esp. up and down, with short, jerky motions
3. to cut (hair, a tail, etc.) short; dock

Etymology: ME bobben, to knock against; also < bobbe, hanging cluster

intransitive verb

1. to move or act in a bobbing manner; move suddenly or jerkily
2. to curtsy quickly
3. to fish with a bob
4. to try to catch suspended or floating fruit with the teeth: with for