quasi-transitive. To wag (the tail). Obsolete.

Of an animal: To move (its tail) from side to side: in dogs usually an indication of pleasure; in cats often a sign of anger.

To brandish, flourish; to lash (the tail, or something with the tail). Also transferred. Obsolete.

transitive. To cause to move with a swish; esp. to whisk (the tail) about.