The only sort-of rude word you can say on Club Penguin without getting banned is "crap"... but it doesn't show up.... Hope this helps!!
Chillyboe is the rudest for he said motherFK 9 times without getting banned and saying crappy 16 times.
The word is from a Club Penguin book and if you enter it in Club Penguin you can redeem it for a prize. If the book is Club Penguin Stowaway, then the word is anchor. If the book is The Great Puffle Switch then the word is proud.
puffle
snow
The word is "Misses"
Combined
misses
its Club penguin
say "(f word) i hate club penguin"
rudest word
dirty fun penguin
I'm sorry but you'll have to buy the book like club penguin wants you to.