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
Nikolas	-	Greek, English
Noureddine	-	Arabic
Josune	-	Basque
Arnell	['a:nəl]
Rokurou	ṙo-koo-ṙo:	Japanese
Alvar	-	Swedish, Estonian