flex one's muscles

Show off one's strength or power, as in The boys love flexing their muscles, or The new department head has decided to flex her muscles. [Early 1900s]

Common Names:

Name	Pronounced	Usage
Gladwyn	GLAD-win	English (Rare)
Elsa	EL-sə (English), EL-zah (German), EL-sah (Finnish)	English, German, Swedish, Icelandic, Finnish, Italian
Fabricius	-	Ancient Roman
Hamilton	HAM-il-tən	English
Veselko	-	Croatian, Serbian
Romeo	['rəumiəu]