![weak as a kitten weak as a kitten](https://www.tekportal.net/wp-content/uploads/2018/11/weak-as-a-kitten.jpg)
Feeble and fragile, as in After that bout with flu she was weak as a kitten. This simile has largely replaced weak as a cat, from the early 1800s.
Feeble and fragile, as in After that bout with flu she was weak as a kitten. This simile has largely replaced weak as a cat, from the early 1800s.