24 - X

[The twenty-fourth entry of April 2016's A-to-Z Blogging Challenge.]

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X is fascinating, strange little letter

Something unknown, something better

It's made up of diagonally-crossed bars

Just like how people paint little white stars

X marks the spot where pirates hide treasure

It's what you mark with when you use a tape measure

Sometimes our answers get X's on them, too

When the teacher finds errors in the work she goes through

X, pronounced 'chi', the twenty-second letter in Greek

Let me tell you a fact from this Christian geek

The X in X-mas actually represents Christ

So don't say X-mas was a Jesus-heist!

X, the mortal enemy of those who hate math

The unknown that induces irrational wrath

X, a real tough letter to write with a brush

Trust me, I know, you should not rush

X, the men who were biologically mutated

X, for movies that have been *a-hem* rated

X for xtremepapers.com, our best friend

For past year papers in our schools till the very end

Okay, I admit the last one was so forced

I guess that's all about X that I have to endorse

X was really tough; thanks for all your suggestions

Hope all these rhymes didn't give you indigestion!