First, you make a roux..
You know that if it's Monday, that means red beans and rice.
You know how to pronounce Tchoupitoulas Street.
Going to Mother's means the sandwich shop.
If your little boy misbehaves, you send him to his garconniere (bachelor's quarters).
When your mother sent you out to play, she said "Don't go past the banquette!" (sidewalk).
You know what the Bogue Falaya is. (river)
You know what a boogalee is.
You have ever said "pure coffee" as an insult.
You have ever lost a pile of money playing bourre(BOO-ray, a gambling card game that can get high stakes and nasty.).
You think the breeze from a flying roach feels good on a hot summer night.
You shake out your shoes before putting them on.
Your sunglasses fog up when you step outside.
No matter where else you go in the world, you are always disappointed in the food.
You get up in the morning and start cooking a pot of rice before you give any thought to what you'll fix for dinner.
Your accent sounds nothing like Harry Connick, Jr's.
Your baby's first words are "long beads."
You ask, "How dey running?" and "Are dey fat?" but you're inquiring about seafood quality. When a hurricane is imminent, you have a lot more faith in Nash Roberts than Super Doppler 6000. (Nash was a weather guy in N.O......never used technology....instead he drew on a board with black marker to show fronts, storms, etc.)
Nothing shocks you. Period. Ever. Not politics, hurricanes, red lights, parking tickets, the Saints, Mardi Gras.....
Your one-martini lunch becomes a five-Bloody Mary afternoon.......and you keep your job. You're walking with a plastic cup of beer. When it starts to rain, you cover your beer instead of your head.
Your idea of health food is a baked potato instead of fries with your fried seafood platter. You have sno-ball stains on your shoes.
You call tomato sauce "red gravy."
Your middle name is your mother's maiden name or your father's mother's maiden name or your mother's mother's maiden name or your grandmother's mother's maiden name or your grandfather's mother's maiden name.
You know you recycled too much newspaper when there isn't enough for the dinner (or crawfish/crab) table.
You are going through customs and the agent asks you where you're from and you answer, "Gentilly." (N.O.'s original suburbs)
You eat sno-balls instead of throwing them.
Your house payment is less than your air conditioning bill.
You push little old ladies out of the way to catch Mardi Gras throws.
Catching "crabs" makes you smile.
You write "crookedpolitician" as all one word. (or you can spell it E-d-w-i-n E-d-w-a-r-d-s)
You know it's "ask" but you purposely say "ax."
You wear sweaters in October because it ought to be cold then.
Someone asks you, "Where ya at?" and you tell them how you are.
You think of potholes as naturally-occurring, upside-down speed bumps.
Your grandparents are called "Maw Maw" and "Paw Paw."
You suck the heads, sing the blues and actually know where you got them shoes.
You don't buy groceries, you make groceries.
You cringe every time you hear an actor with a Southern or Cajun accent in a "New Orleans-based" movie or TV show.
You have to reset your clocks after every thunderstorm.
You waste more time navigating back streets than you would if you just sat in traffic.
You fall asleep to the soothing sounds of four box fans.
You eat dinner out and spend the entire meal talking about all the other good places you've eaten.
You make roux isn't what some think.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic