"you know you're from indiana if":
You know several people who have hit a deer.
You have no problem spelling or pronouncing "Terre Haute".
Your school classes were canceled because of cold.
You know what the phrase "Knee-high by the Fourth of July" means.
You've heard of Euchre, you know how to play Euchre, and you are the master of Euchre.
You end your sentences with an unnecessary preposition. Example: "Where's my coat at? or "If you go to the mall I wanna go with." [Doesn't everyone do this?]
You say things like "catty-wumpus" and "kitty-corner". [I don't say "catty-wumpus".]
You carry jumper cables in your car regularly.
You drink "pop". [Well, until i moved away from Indiana.]
You know what "cow tipping" is. [Doesn't everyone?]
You can see at least 2 basketball hoops from your yard.
People at your high school chewed tobacco.
You think that Notre Dame is a college in South Bend, and not a cathedral in France.
You know "The Dunes" are in Indiana (not Egypt).