To move one way and the other with quick turns; to shake to and fro; to move vibratingly; to cause to vibrate, as a part of the body; as, to wag the head.

To move one way and the other; to be shaken to and fro; to vibrate.

To be in action or motion; to move; to get along; to progress; to stir.

The act of wagging; a shake; as, a wag of the head.

causing to move repeatedly from side to side

move from side to side; "The happy dog wagged his tail"