false move

and one false move

Fig. [even] a single movement that indicates that one is disobeying an order to remain still or in a nonthreatening posture. The robber threatened to shoot us if we made one false move.

Common Names:

Name	Pronounced	Usage
Yori	yo-ṙee	Japanese
Masood	-	Arabic, Persian
Marianela	-	Spanish
Boaz	BO-az (English)	Biblical, Hebrew, Biblical Hebrew
Kilie	KIE-lee	English (Rare)
Washington	WAHSH-ing-tən	English