A made up word used to trick stupid 6th graders.
There is not an "X" word but you can get them so pissed at you. It works best if you get alot of people in on it and act serious like it's a super bad word.
Bob: Hey Whitney have your parents told you the x word yet.
Otherwise known as “The Scottish Play, the M word is never to be said in any theater under any circumstances. It is seen as extremely taboo among the thespian community, and is associated with whatever show is being produced failing or having some sort of tragedy in the cast.
Person A: “this show is so dumb, can’t we put on something cool... like Macbeth
Person B: “Bro, you can’t say the M word in a theater”