English phrase from drama scenes

What Does "i knew you had something up your sleeve" Mean?

Learn what "i knew you had something up your sleeve" means, when people say it, and how to use it naturally in English.

Intermediate
Neutral
Firm
Accuse

You what the fuck are you doing here? I knew you had shit up your sleeve but murder

It means you suspected someone had a hidden plan or advantage.

From I'M Obsessed With My Boss Part Ii, Episode 49

When do people say this?

Scene Context

The speaker reacts to someone's secretive behavior and says they expected a hidden motive.

Usage Scenario

Use this when you think someone was being sneaky or planning something behind the scenes. It can sound accusing, so it is better in informal arguments than in polite conversation.

Better ways to say it

1
I knew you had something up your sleeve.
2
You had something up your sleeve, didn't you?
3
I knew you were hiding something.

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How to Accuse Someone in English