Turn on a sixpence bare infinitive idiom
To turn quickly in small area
I want to buy an electric motorbike because it is environmentally-friendly and it can turn on a sixpence in rush hour.
After replacing brakes and wheels, my car turned on a sixpence on a narrow street corner.
Because the robber turned on a sixpence, it was too difficult for the police to catch up.
To change opinion, behaviour, etc suddenly.
Peter is a shy boy, but his behaviour can turn on a sixpence if he meets his best friend.
To move quickly up and down and from side to side, typically in an attempt to avoid hitting or being hit by something
To move in a slow and unconcerned manner.
To head to something or someone quickly and directly.
To quickly and recklessly go or move round somewhere
The verb "turn" should be conjugated according to its tense.
hurt someone or yourself
If you try to carry that suitcase, you’ll do yourself a mischief.