To walk with pompous bearing; swagger. To display in order to impress others. Sometimes used with out: Don't strut out your resume until you have more accomplishments to list. To provide (a structure) with a strut or struts. To brace or separate with or as if with a strut. A pompous, self-important gait. A structural element used to brace or strengthen a framework by resisting longitudinal compression. strut (one's) stuff Slang To behave or perform in an ostentatious manner; show off.