shimmy, n. & v.
--n. (pl. -ies)
1 hist. a kind of ragtime dance in which the whole body is shaken.
2 archaic colloq. = CHEMISE.
3 US an abnormal vibration of esp. the front wheels of a motor vehicle.
--v.intr. (-ies, -ied)
1 a hist. dance a shimmy. b move in a similar manner.
2 shake or vibrate abnormally.
20th c.: orig. uncert.