swank vb
1 give oneself airs, hot-dog (chiefly U.S.) posture, put on side (Brit. slang) show off (informal) swagger n
2 attitudinizer, braggadocio, hot dog (chiefly U.S.) poser, poseur, show-off (informal) swankpot (informal) swashbuckler
3 boastfulness, display, ostentation, show, swagger, vainglory