American colloquialisms I plan to add to my vocabulary. (Note these sound uniquely and inadvertantly dopey in a New Zealand accent, enough to make any nearby American laugh so hard their soda comes out their nose. Use responsibly.)

• The good Lord willin’ and the creek don’t rise
• No dog in that fight
• All y’all
• North Cackalacky
• Shut up! (expr. of incredulity)
• Dude, don’t harsh my mellow (alt. …harsh my buzz)
• Big whoop
• Asshat or, even better, Assclown
• Butter my butt and call me a biscuit!
• Like a mofo
• Whatever (W sign with fingers; bonus points for extended version, with accompanying hand signs: …because You aRe A Loser)
• Hello!
• My bad
• Dude, that shit ain’t cool
• Tastes like ass (v. important to say ass, not arse, as I have learned to my cost.)
• Get your (noun) on.
• The Devil’s beating his wife (when it rains while sunny)
• A long ride on the waaaaahmbulance
• Git ’er done!