Definitions of flex:
- noun: the act of flexing
Example: "He gave his biceps a flex to impress the ladies"
- verb: exhibit the strength of
Example: "The victorious army flexes its invincibility"
- verb: cause (a plastic object) to assume a crooked or angular form
- verb: bend a joint
Example: "Flex your wrists"
- verb: contract
Example: "Flex a muscle"
- verb: form a curve