Board Thread:Club Penguin Facts/@comment-7150475-20130527230021/@comment-5563215-20130624053352

Toopsy wrote: The word "ninja" is singular, while "ninjas" is plural. However, if you are watching or reenacting a foreign martial arts film, then the word "ninja" may be used in either case. Example:

"I am ninja! These are my ninja friends! We are clan of ninja!" I saw someone saying this example at Yahoo! Answers, Mr Copycat.