v. & n.
v. 1 a intr. sway or vibrate unsteadily from side to side. b tr. cause to do this. 2 intr. stand or go unsteadily; stagger. 3 intr. waver, vacillate; act inconsistently. 4 intr. (of the voice or sound) quaver, pulsate.
n. 1 a wobbling movement. 2 an instance of vacillation or pulsation. wobble-board Austral. a piece of fibreboard used as a musical instrument with a low booming sound. wobbler n.
[ earlier wabble, corresp. to LG wabbeln, ON vafla waver f. Gmc: cf. WAVE, WAVER, -LE(4) ]