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