I/you/he, etc. had better do sth ()
A2
used to say what someone should do
Dictionary examples:
You'd better laugh at my jokes, or I'll tell worse ones! (0.0)
You'd better wear a silly hat, or the party will be boring! (0.0)
You'd better eat your vegetables, or they'll eat you! (0.0)
He'd better not be late. (4.5)
You'd better hurry or you'll miss the train. (27.4)