Don't you remember, in SM64, if you won the game thrice in a row without turning off the system or getting hurt once, Mario will say "Hey, you (censored) (censored) (censored), and (censored) my (censored)-(censored)ing (censored)-face!" (Censored), that was (censored)ing awesome.
Oh, and Super Mario Strikers is full of obscenities. You should see what happens when Mario and Peach are on opposing teams. If you do something with a thing, then Peach (censored)s Mario's (censored) (censored) (censored)!