wriggle

v. (-ling) 1 (of a worm etc.) Twist or turn its body with short writhing movements. 2 make wriggling motions. 3 (foll. By along, through, etc.) Go thus (wriggled through the gap). 4 be evasive. n. Act of wriggling.  wriggle out of colloq. Avoid on a pretext.  wriggly adj. [low german wriggelen]

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