1. To walk with a swaying motion; hence, to walk and act in a pompous, consequential manner. A man who swaggers about london clubs. (Beaconsfield)
2. To boast or brag noisily; to be ostentatiously proud or vainglorious; to bluster; to bully. What a pleasant it is . . . To swagger at the bar! (Arbuthnot) To be great is not . . . To swagger at our footmen. (Colier)
Origin: Freq. Of swag.