To move sinuously; twist to and fro; writhe; squirm; wiggle.To move along sinuously, or by twisting and turning the body, as a snake, an eel, or a worm; hence, figuratively, to proceed by shifts and turns; make way by sinuous or crooked means: as, to wriggle out of a difficulty.To cause to wriggle; twist and shake slightly and quickly; effect by wriggling.n. The motion of one who or that which wriggles; a quick twisting motion or contortion like that of a worm or an eel.n. Something showing the effect of wriggling or sinuous action; a sinuosity or contortion; a wrinkle.