Hilarious misuse of a word, gross misspelling, or a grammatical error so egregious that the meaning of the sentence is completely lost to all who attempt to read it.
Improper Conjugation: "The photo was actually the third time I meet him"
Ending Sentence with Comma (and other mistakes): "What he ment to say for me, was I was a ball boy for Antoine Walker,"
Just Confusing: "What are article?"
Word Swapping: "Yeah, I was always from my 'desk.'"
Usage: "I think you have to read that email from right to left it has so many Luu-ow's in it"