Black Obsidian 

A code name for a female named after a crystal

Friend: “Did how did your date with black obsidian go.”
Friend 2: “Good!”

Black Obsidian by Brickroadhouse November 23, 2022

Obsidian black 

Lack of colour deep space with no stars absorbs all light no reflections the blackest black know to man

Did you hear of that car painted obsidian black

Obsidian black by Step lupid March 26, 2021