up one's sleeve | Idiomator

Meaning: (idiomatic)Hidden and ready to be produced as needed;in reserve.I have tried everything I can think of, and I don't have anything moreup my sleeve.1922,Agatha Christie, “Chapter 16”, inThe Secret Adversary:"There may be things that you know which I do not. I have not pretended to be aware of all the details of your show. But equally I've got somethingup my sleevethatyoudon't know about. And that's where I mean to score. Danvers was a damned clever fellow——" He broke off as if he had said too much.

Examples:

EN: "Pull up one's sleeve doesn't make it naked.
ES: Subirse las mangas, eso no desnuda.
EN: That's Korosensei's ace up one's sleeve.
ES: Eso es el as de Korosensei uno de la manga.
ID: Itu senjata rahasia Korosensei.
EN: 2. to have a ~ up one's sleeve
TE: పెనగొన్న=ఒకదానిపై ఒకటి పెనవేసుకొను

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