biggety (?.)
- aggressively self-confident
- bluff
- bold
- brash
- bumptious
- cheeky
- chesty
- chutzpadik
- cocky
- conceited
- contemptuous
- crusty
- derisive
- disrespectful
- facy
- flip
- flippant
- forward
- fresh
- gally
- gratuitous
- immodest
- impertinent
- impudent
- know-it-all
- malapert
- nervy
- obtrusive
- overwise
- peacockish
- peacocky
- perk
- perky
- pert
- procacious
- puffed up
- rude
- sassy
- saucy
- self-conceited
- self-opinionated
- smart
- smart-alecky
- smart-ass
- stuck-up
- swelled-headed
- uncalled-for
- wise-ass