swagger
/ˈswa-gər/
verb
to conduct oneself in an arrogant or superciliously pompous manner; especially : to walk with an air of overbearing self-confidence
boast, brag
to force by argument or threat : bully
noun
an arrogantly self-confident way of walking : an act or instance of swaggering
arrogant or conceitedly self-assured behavior
ostentatious display or bravado
adjective
marked by elegance or showiness : posh