Wriggling

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."

To cause to or make something wriggle.

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

To use crooked or devious means.

The act of one who wriggles.

"The child's constant wrigglings made her difficult to hold."