had better

Idioms  

1. Also, had best. Ought to, should. For example, You had better finish this one before starting another, or We had best be going. [Mid-1400s] Also see you'd better believe it.

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Example Sentences

Or is he trying to suggest to the Iranian leadership they had better agree a deal or face worse consequences?

From BBC

Researchers suggest that wealthier individuals may have had better living conditions, which could have helped them survive tuberculosis longer.

From Science Daily

They had better hope their bankers don’t turn off the taps, too.

From The Wall Street Journal

They had better hope their bankers don’t turn off the taps, too.

From The Wall Street Journal

Mrs Quinn said the attack had been in the news at the time and she had joked to Quinn - who denies all the charges - that the shirt had better not be found near the crime scene.

From BBC