猫の手も借りたい (ねこのてもかりたい) is a famous Japanese idiom that literally means ‘I would want to borrow even a hand (paw) of a cat’. Figuratively, it means ‘extremely busy’ — so busy that you’re grasping at cat’s paw, which is totally useless.
Related Word: 借りてきた猫
借りてきた猫（かりてきたねこ）is another advanced Japanese idiom that literally means ‘a borrowed cat’. Figuratively, it illustrate when someone becomes shy and reticent because they are feeling nerves or overwhelmed in a new environment. This idiom invokes the image of a vigilant cat placed in an unfamiliar environment.
We are short-handed as if we’d want to borrow even cat’s paw
This is a situation where I’m so busy that I’d want to borrow even cat’s paw
She had been quite like a borrowed cat for a while, and that’s probably because she is 人見知り (not good at talking with someone not close).
Related Expressions to 猫 (ねこ; cat)
Synonyms: 多忙 (たぼう) very busy
Synonyms in English: extremely busy
Related Words: 猫 (ねこ) cat, 手(て) hand, 借(か)りる borrow, rent