Top Definition
1. extremely blunted, either to the point of blacking out, or reaching a higher state of mind then ever before
2. an enlightened black man
"Last night I took three bong rips, smoked a blunt, and reached astro black"
"Brother Muhammad is all astro black now after reading the Koran all day"
by somaticvibe April 30, 2008
1 more definition
Quasimoto
Astro Black ain't the one to play the hydrant game.
by Seamus O'Houlihan March 26, 2010

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