be a bag of cats

be a bag of cats

To be very unpleasant or difficult to deal with. A: "Martha's a real bag of cats today—she just got word of the printing error." B: "Oof, I can imagine that riled her up. I'll come in tomorrow to smooth things over with her." Phil is usually a bag of cats until he has his morning coffee. Sorry I'm such a bag of cats today—I was up half the night with my two-year-old daughter.

See also: bag, cat, of

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