›to walk, esp. with a swinging movement, in a way that shows that you are confident and think you are important: He swaggered into the room just like any bully would.swagger
/ˈswæg·ər/n[C/U]›[C]He walked out of the room with a swagger that made me want dislike him.swaggering
/ˈswæg·ər·ɪŋ/adj[not gradable]›Such swaggering self-confidence irritates a lot of people.