I. swag ‧ ger 1 /ˈswæɡə $ -ər/ BrE AmE verb [intransitive always + adverb/preposition]
[ Date: 1500-1600 ; Origin: Probably from swag (verb) ( ⇨ ↑ swag ) + -er (as in chatter ) ]
to walk proudly, swinging your shoulders in a way that shows you are very confident – used to show disapproval:
He swaggered over towards me.
II. swagger 2 BrE AmE noun [singular, uncountable]
a way of walking, talking, or behaving that shows you are very confident – used in order to show disapproval:
He walked in with a swagger.