A grumpy old man who can't be bothered with anything, has all his life been in a bad mood, and generally, has a dark cloud over his head.
You, Mr. Smith, are an old blusterfuck! You have been in a bad mood for forty years, can't be bothered with anything, and you steal my happiness every time you darken my door.
The female equivalent of blue balls. When a woman is aroused to a point where stopping the sexual stimulation becomes highly frustrating and/or physically uncomfortable.
Don't stop in the middle of getting your lady off, or she'll get bluterus and resent your dumb ass.
n. cross between "utter" and "blab/blubber/bluster" and such. Meant to convey a sense of poorly chosen words spoken in passion.
Bernie: She said what she heard wouldn't be hearsay. She looked it up. We were arguing, so it would qualify as an excited blutterance.
Alan Shore: Blutterance isn't even a word, much less a defense! You murdered someone over a fake word!