it means when things are getting tough you have to get back up, dust yourself off and keep trying.
Let's all cowboy up and get this job finished!
by brattygrrl911 August 3, 2003
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quit your bitching and be a man. when it gets tough start playing hard.
Before the big game against our rivals someone said "Cowboy up" to the pesimistic pussies.
by daywalker October 7, 2003
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When faced with a hard chore, it's a shift in attitude from "can't" to a positive "can-do" with confidence and a non-complaining spirit that becomes contageous.
Halfway through a hot day of hauling hay you might tell yourself or your buddy to "c'mon, cow-boy up." and thereby keep your work and your attitude from going south.
by still_do December 2, 2003
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"Cowboy Up" is when you are injured or down and the prospect of doing whatever it is you're about to try is so bleak that the best you can hope for is to live through it.
This year, the Boston Red Sox cowboyed up to rally against the Yankees in the championship series.
by Jeff Newell October 11, 2003
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Basically, another way of saying "Shut up and take it like a man" or "Quit your whining." The term is derived from the popular image of cowboys being tough, unflinching, uncomplaining, and hard-working.
"Cowboy up, man. What would John Wayne say if he heard you complaining over a little hard work?"
by You Can't Kill the Metal October 7, 2006
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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
by Dave February 22, 2004
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(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)
by Sexydimma May 31, 2016
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