learn (your) lesson

to learn something useful about life from an unpleasant experience.

I'm never going to mix my drinks again - I've learnt my lesson.

• carbon copy
• cardboard city
• cards are stacked against
• cards are stacked against someone
• care a fig
• care a hoot
• care a toss
• care tuppence
• carried away
• carrot-and-stick
• carrot and stick
• carrot and stick approach
• carrot-top
• carry a torch for
• carry a torch for someone
• carry a tune
• carry coals to Newcastle
• carry off
• carry off something
• carry on
• carry out
• carry out something
• carry over
• carry over something
• carry someone through