The Hall of Fame of Cussin'

Pac-Man, who is an abstraction, was honored with Hall-of-Fame enshrinement two Saturdays ago. Today I posed a question unanswered by friends: What word would be inducted first into a Cussin' Hall of Fame? Where should it be located?

I think it's somewhat analagous to video games. Four-letter words, eight-bit legends. How do you choose Super Mario over Pac-Man, or vice versa? How do you pick from among the most vulgar descriptions of the oldest acts? Which of them came first, anyway?

I can't get enough of these polls. Before we begin the evening's open thread, let's put it to a vote.