Wyrażenia zawierające nazwy zwierząt

to be a guinea pig - "guinea pig" to świnka morska, ale to wyrażenie znaczy tyle samo co "być królikiem doświadczalnym".

I won't be your guinea pig!

the cat's whiskers, the bee's knees - pępek świata

She thinks that she's the cat's whiskers.

a pack-rat - osoba, która zbiera rzeczy, które inni wyrzucili; osoba, która nie potrafi nic wyrzucić

John is a true pack-rat, he kept even the wrappers from his favourite candies.

as stubborn as a mule - odpowiednik polskiego 'uparty jak osioł'

There is no sense in trying to talk him out of going, he is as stubborn as a mule.

as busy as a bee - być bardzo zajętym, mieć dużo pracy

I don't have the time to talk to you, I am as busy as a bee right now.