You had best get that fixed right away.You had best be at school on time every day.
(redirected from had best do something)
had better (do something)
Should. You had better listen to what I'm saying before you get yourself into more trouble.
had better/best do something
used to tell somebody what you think they should do: You’d better lock the door before you leave: there are lots of thieves about.Hadn’t you better check to see if the baby is all right?‘Shall I phone her now?’ ‘You’d best not. She might be asleep.’