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1.
a term that originated with people that ride horses, since you are supposed to brush them and groom them after a workout; now used to refer to the way a promiscuous woman looks
That overpainted middle-aged hussy looks like she's been rode hard and put up wet.
by Winsi June 19, 2004
 
2.
describes having completed difficult or harsh, unrelenting work; it refers to the poor care of horses;

the words "hard" and "wet" also lend themselves to sexual innuendo, though they are not part of the original meaning
I just finished a 12 hour shift. I feel like I've been rode hard and put up wet.

These kids have worked my nerves! I feel like I've been rode hard and put up wet.

Related idioms: worked like a Hebrew slave; worked like a white-mouthed mule
by almost doctor April 16, 2014