The most commonly misspelled word

[Splatterpunk]

Addendum:

According to The Complete Word Book by Mary A. DeVries, this is the entire "i before e" spelling rule:

Use i before e except after c or when sounded like a as in neighbor or weigh; and except seize and seizure and also leisure, weird, height, and either, forfeit, and neither.

As you can see, this covers most of the cases.

You ARE a hipstah.