( an insult used between men only: to metaphorically 'grow an extra pair of balls' ans take ones responsibilities like a grown man
Incompetent teen son: dad I got my girlfriend pregnant. What do I do?
Father: cowboy up and be a dad. And btw, I am busy ( slams door in son's face)
Father: cowboy up and be a dad. And btw, I am busy ( slams door in son's face)
by Sexydimma May 28, 2017
( an insult used between men only): to metaphorically speaking ' grow an extra pair of balls' and take one's responsibility like a grown man
Teenage son: dad I got my girlfriend pregnant, what do I do?
Father: cowboy up Peter. And by the way I am busy ( slams door in son's face)
Father: cowboy up Peter. And by the way I am busy ( slams door in son's face)
by Sexydimma May 27, 2017
Bruce Lee: Cowboy up motherfucker!
Jose Contreras: I'm halfway to Heavington, but get me a Jim
Bruce Lee: No, get it yourself
Jose Contreras: I'm halfway to Heavington, but get me a Jim
Bruce Lee: No, get it yourself
by benny b from the bronx August 17, 2007
145-pound 5'11" Cletus, with Skoal in his lip and t-shirt sleeves rolled up, thumb in the front of his pants says ""c'mon ya'll....cowboy up! let's head on down to the country bar and pick us up some fat hefers!"
by Steve C. January 27, 2004
Kevin Millar's pregame chant as he grabs his ankles and takes it in the stink from the eight other starters on the Boston Nine.
by Eaton Buch May 18, 2005
by txGeek October 10, 2003