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Inf. to quit; to wear out and stop. He pooped out after about an hour of hard work. I think I'm going to poop out pretty soon.
poop someone or something out
Inf. to cause someone to become exhausted or give out. All that exercise really pooped everyone out. A full day of play at the beach had pooped the dog out. The activity pooped out the dog.
1. Tire out, exhaust, as in I ran about ten miles, but then I was too pooped out to go on.
2. Quit, decide not to participate, especially at the last minute. For example, We had about twenty signed up for the seminar, but then half of them pooped out. [Slang; late 1800s]
1. To make someone exhausted; tire someone out: That long walk uphill really pooped me out.
2. To quit something because of exhaustion: Too tired to continue, he pooped out of the race.
3. To decide not to participate, especially at the last moment: She was going to help me, but she pooped out and didn't come.
in. to quit; to wear out and stop. (see also pooped (out).) He pooped out after about an hour.