[n] ostentatious hammy conduct
bluster, boast, boastfulness, boasting, bombast, brag, braggadocio, braggartism, bragging, brashness, brass, bravado, brazen boldness, cheek, chutzpah, conceit, fanfaronade, gall, gasconade, gasconism, hubris, improvidence, imprudence, impudence, indiscre