Sleigh - slay

Saw this posted on Facebook:   "OMG you sleigh me girl."
First, the word mistake:

sleigh = a sled drawn by a horse or reindeer.
slay = to kill violently; the slang use of the word means to overwhelm, as with laughter.

Second, the punctuation:

As a teacher, I want to tell her to put a comma after "OMG" and after "me."  Actually, if she's that excited, the sentence probably also needs an exclamation point.

Correctly written and punctuated, the sentence would read: "OMG, you slay me, girl!"

Sleigh and slay are homophones.