( 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 29, 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 21, 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 26, 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 19, 2005

by txGeek October 09, 2003

"time to cowboy up"
"cowboy up haha talz, supportin the sockies"
and lastly
"watchin the sox vs As
COWBOY UP BABY!!!!!!!"
(all are direct examples)
"cowboy up haha talz, supportin the sockies"
and lastly
"watchin the sox vs As
COWBOY UP BABY!!!!!!!"
(all are direct examples)
by Lise October 06, 2003
