wiggle

Etymology

From Middle English wiglen, probably from Middle Dutch wigelen (“to wiggle”) and perhaps Middle Low German wigelen, frequentative of wiegen (“to rock”), from wiege (“cradle”). See wain, and Dutch wieg (“cradle”). Cognate to Dutch wiggelen (“to wiggle”).

verb

1. (transitive, intransitive) To move with irregular, back and forward or side to side motions; To shake or jiggle.
   Her hips wiggle as she walks.
   The jelly wiggles on the plate when you move it.
   "These modern dances!" he grunted, grabbing his smokes. "They don't do nothing but teach the kids how to bump n wiggle." 2012, Stephen King, 11/22/63, page 788

noun

1. A rapid movement in alternating opposite directions, not necessarily regular.
   She walked with a sexy wiggle.
2. (figurative) An alternating state or characteristic.
3. (in the plural) See wiggles.