flex
— Verb
– English
~ form a curve; "The stick does not bend"
flex
— Verb
– English
~ cause (a plastic object) to assume a crooked or angular form; "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar"
flex
— Verb
– English
~ exhibit the strength of; "The victorious army flexes its invincibility"