rat race

rat race  {n.},  {slang}
A very confusing, crowded, or disorderly rush; a confusing scramble, struggle, or way of living that does not seem to have a purpose.
The dance last night was a rat race. It was too noisy and crowded.
School can be a rat race if you don't keep up with your studies.
This job is a rat race. The faster you work, the faster the boss wants you to work.
Categories: noun slang

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