FLEX Definition Meaning | Dictionary. com verb phrase flex on, to brag or show off to; assert one’s dominance or superiority over She’s flexing on her haters by posting new photos of her beautiful family
Flexing Muscles: Understanding The Power Move | CyVigor Flexing a muscle involves creating tension that temporarily contracts muscle fibres This can be done by first contracting concentrically, or shortening muscle fibres, and then contracting isometrically, or holding the muscle in place without movement