Sad Black is a verb. Used when you regret something you did or is you wished to do something with that could have been regrettable.
We should have sad black yesterday
A black man who has very big testicals
Nigga you've gotta have big black balls to do that
The charming and evil guy from the RWBY series, he enjoys joking around and proving to others that he has the power to do what he needs to do.
Mercury Black is so damn hot.
Sphinx of black quartz, judge my vow is a sentence with every letter in the alphabet in it and is objectively cooler than 'the quick brown fox jumps over the lazy dog'
Sphinx of black quartz, judge my vow.
When you snort your deseased fathers ashes making your nose look like a black chimney.
Bro 1: What the fuck are you doing?
Bro 2: I'm hittin' a black chimney.
Bro 1: Lemme get a hit.
Regular otaku, who wears long black coats from metalshop even in hellish weather. In other words, special snowflake or just simple attention-seeking pleb.
anon: He calls himself black otaku.
anon2: He only wants attention.
anon: Why he's wearing black coat in 36°C?
anon2: Because he's black otaku.