Essentially another term for self-endowment of strength and moral, or to another.  Essentially another term for a similar phrase like, "toughen up", or "stop your belly-aching and fight!", etc etc.
"I'm sure this is a word made by southerners.  I'm not southern, but I like the definition of what it means.  Reminds me of me. ^_^ "
-me
-me
by Dave February 22, 2004
Get the cowboy upmug. (an insult used between men): to metaphorically " grown an extra pair of balls" and assume your responsibilities like a grown
Not very bright teenage son: dad I got my girlfriend pregnant. What do I do?
Father: all you have to do is cowboy up son, and btw, I am busy ( closes the study door in son's face)
Father: all you have to do is cowboy up son, and btw, I am busy ( closes the study door in son's face)
by Sexydimma  May 30, 2016
Get the cowboy upmug. The original meaning of "Cowboy Up" was to inform the next bullrider or bucking bronco rider at a rodeo to get ready to ride or "cowboy up". Now it means to stop being a pussy liberal snowflake with your safe spaces and whiny bullshit, grow up and be a man for once in your pathetic life.
Liberal snowflake type: Oh no! Trump won the election! I need to find a safe space to calm down and stop crying.
Real man type: No you need to stop being a pussy and cowboy up!
Real man type: No you need to stop being a pussy and cowboy up!
by NOMmnom March 7, 2017
Get the cowboy upmug. by steve k... July 20, 2008
Get the cowboy upmug. ( 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
Get the cowboy upmug. ( 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
Get the cowboy upmug. 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
Get the cowboy upmug.