swag·ger / ˈswagər/ • v. [intr.] walk or behave in a very confident and typically arrogant or aggressive way: he swaggered along the corridor | [as adj.] (swaggering) a swaggering gait. • n. [in sing.] a very confident and typically arrogant or aggressive gait or manner: they strolled around the camp with an exaggerated swagger.• adj. denoting a coat or jacket cut with a loose flare from the shoulders.DERIVATIVES: swag·ger·er / ˈswag(ə)rər/ n.swag·ger·ing·ly / ˈswag(ə)ringlē/ adv.