cooked his goose	sam się tak użądził
let the cat out of the bag	wyjawić sekret
flogging a dead horse	marnować czas na coś, czego nie da się zrobić
donkey's years	=very long time
gone to the dogs	zejść na psy
gets my goat	=irytuje mnie
kill two birds with one stone	to solve two problems at one time with a single action
take the bull by the horns	wziąć byka za rogi
until the cows came home	do późna, długo
there are plenty more fish in the sea	used to say that there are many other people or possibilities
make a pig of oneself	to eat too much, too fast, or noisily
crocodile tears	krokodyle łzy
lion's share	lwia część
rat race	wyścig szczurów
to have kittens	to become very worried or upset about something
stag night	wieczór kawalerski