A nickname for the popular Disney Home Video logo in which a spark writes "Walt Disney" with the wordCLASSICS in a fancy font over a black abstract rhombus-shaped diamond. This series is out of print and are becoming valuable to Disney collectors.
when a person places their balls into their partner's mouth, then shoves their shaft up the partner's nose; a double black diamond being two shafts (one in each nostril) and four balls (all in the mouth)
a social/fashion trend in recent years where American women (especially ditzty teens and freshly-turned drinking age hotties) seek out any/all African-American males. Said chicks then IMMEDIATELY "go public" with their 20 carat "black diamond" by spending every second of their lives 'showing off' their man (or baby-daddy, or whatever she passes him off as to the entire world).
"Did you see that skanky blond booger-hog struttin' around the clubshowing off her new Black Diamond, all-like she was the f------ Queen of England an' shit?"