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
Etel	-	Hungarian
Spencer	['spensə]
Ianto	-	Welsh
Chauncey	['tʃɔ:nsi]
Wubbe	VUB-bə (Dutch), WUB-bə (Dutch)	Frisian, Dutch
Theresa	tə-REE-sə (English), tə-RAY-zə (English), te-RE-zah (German)	English, German, Swedish, Norwegian, Danish