swagger

1. verb To exhibit extreme self-confidence. A: "Look at them swaggering into the cafeteria." B: "That's why they're the cool kids."

2. verb To boast. He's always swaggering about what a big rock star he is, and yet he's never recognized when we're out in public. Hmm.

3. noun Extreme self-confidence. All the girls want to date him cause he's got swagger.