Definitions by titled

cowboy the fuck up 

1. To grow a tough skin quickly or suck it up.
2. Punchline to a brilliant lyric in Deathboy's "The 80s are Dead"

3. Credited as 'Astrid's bit.

"Stop being a sissymary motherfucker, and just cowboy the fuck up already"

cowboy the fuck up by titled November 5, 2003