card up sleeve

card up (one's) sleeve

A secret resource or plan held in reserve: a tough negotiator who had a number of cards up his sleeve.

Name	Pronounced	Usage
Somchai	-	Thai
Gertrude	GUR-trood (English), khər-TRUY-də (Dutch)	English, Dutch
Khloe	KLO-ee	English (Modern)
Clifton	KLIF-tən	English
Perpetua	per-PE-twah (Spanish)	Spanish, Late Roman
Mihkel	-	Estonian