A first ass man move is one of great wisdom and self-awareness. This generally refers to moves that are unexpected, spontaneous, and perhaps even outright brilliant.

Origin: While this phrase may be of ambiguous origin, this term, for unexplained reasons, is heavily assosiated with the lord and saviour, Jesus Christ himself.
Boy 1: How did you get rid of that clingy chick that keeps stalking you on social media?
Boy 2: I blocked her.
Boy 1: Wow dude...that's a first ass man move, if you ask me.
by Jimmy's Croissants December 26, 2019
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