A legendary figure, typically British, who contributed greatly to culture, science, or the advancement of man in any way.
Even despite some considerable and inherent flaw that held them back in life.
Guy 1: "Syd Barrett was the original Crazy Diamond"
Guy 2: "Yeah? Stephen Hawking was a Crazy Diamond too"
Guy 1: "Shine on you Crazy Diamonds"
A sexual act performed by shaving the female specimans hair off then proceeding to jaz'm (see definition) onto her freshly shaved scalp, coating the entire skull. Next, you squat a spot over top of her gleaming dome and proceed to shave your rancid pubic hair onto her head, sprinkling in such a fashion that is resembles a Dustin Diamond aka. Screech's hairstyle.
"Dude, Rolo Tony's girlfriend actually asked me to give her a DustinDiamond. I couldn't refuse."
Sex move involving five guys and one whore. The whore strokes two cocks with her right and left hand, sucks a cock, and gets penetrated in the ass and her vagina by the remaining two cocks. When you draw a line and connect the cocks, it forms a diamond-like shape.
Elvira attempted the diamond the other day; the aftermath was grim.