Taunt is a Dark-type status move introduced in Generation III. It is TM12, which can be obtained as a reward for conquering the Tsukinami Village Gym.
Taunt prevents the foe from using any status move for three turns (four if the user moved before the target on the turn Taunt was used). However, it can be bounced back by Magic Bounce or Magic Coat and switching out will free the target of the effects of Taunt.
The item Mental Herb cures its holder of the Taunted status condition once, and is then consumed.