IDIOM OF THE DAY
π΄ CATCH SOMEONE IN THE ACT
You catch someone in the act when you discover them while they are doing something wrong.

π€¦ After the party,I was trying to clean up the mess before anyone noticed it, but my mum came in and caught me in the act.
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π΄ HAVE AN ACE UP YOUR SLEEVE
You have an ace up your sleeve when you have a secret or hidden advantage that you can use against an opponent.

π€· That job applicant has an ace up her sleeve. she's known the boss since she was at school.
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π΄ ACT YOUR AGE
If you tell someone to act their age you are telling them to stop being childish or silly.

π‘ Oh, act your age,Mary! don't behave like a child.
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