wriggle

v. i.

  1. To move the body to and fro with short, writhing motions, like a worm; to squirm; to twist uneasily or quickly about.

v. t.

  1. To move with short, quick contortions; to move by twisting and squirming; like a worm.

a.

  1. Wriggling; frisky; pliant; flexible.