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
Cicely	['sisli]
Denis	de-NEE (French), DEN-is (English), DE-nis (German)	French, Russian, English, German, Czech, Slovak, Slovene, Romanian, Croatian
Shelah	-	Biblical
Brian	[braiən]
Svetoslav	-	Bulgarian, Medieval Slavic
Woodrow	['wudrəu]