butch it up
Term used to encourage a specific traditionally masculine act or more generally masculine behavior in an effeminate acting person.
To someone that won't jump in a cold swimming pool, "Butch it up, girlie-pants, and jump in the frickin' water!"
butch up
To stop acting like a prissy little girl and act more like a man.
To act like a manly woman.
To act like a manly woman.
"Hey dude, why don't you butch up and stop whining like a spoiled little girl.