A contemptible or unpleasant man.

A male homosexual, based on the four letters of the word HOMO.
"So he's a bloody four-letter man as well as a bloody coward, he thought." --From Ernest Hemingway's 'Short Happy Life of Francis Macomber'
by Fried Hog November 28, 2009
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N. A variation of three-lettered man, referring to a male homosexual. The four letters refer to Homo.
We don't hang out with John. We've heard he's a bit of a four-lettered man.
by One dude. May 24, 2009
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