Verb

(wriggl)

To twist one's body to and fro with short, writhing motions; to squirm.

Teachers often lose their patience when children wriggle in their seats.

* Jonathan Swift

Both he and successors would often wriggle in their seats, as long as the cushion lasted.

* {{quote-book

, year=1972 , author=Carlos Castañeda , title=The teachings of Don Juan: a Yaqui way of knowledge , page=78 citation , passage=I tried to ease my grip, but my hands were sweating so profusely that the lizards began to wriggle out of them.}}

To cause to or make something wriggle.

He was sitting on the lawn, wriggling his toes in the grass.

Verb

(oscillat)

To swing back and forth, especially if with a regular rhythm.

A pendulum oscillates slower as it gets longer.

To vacillate between conflicting opinions, etc.

The mood for change oscillated from day to day.

To vary above and below a mean value.