having kittens

Verb

have kittens (third-person singular simple present has kittens, present participle having kittens, simple past and past participle had kittens)

1. (informal) To become extremely upset.
   • Your mum will have kittens when she sees what you've done to your hair!
2. (informal) To be in a state of frantic nervousness.
   • The guests are starting to arrive, but the hostess is having kittens because nothing is ready yet.
3. (literal) Usually of a female cat, to give birth to kittens.