(Today's video has no words, but since it features cows, we thought you might be interested in these expressions.)
To have a cow
is slang for getting angry.Mum will have a cow when she finds out.Until the cows come home
means for ever, or for a very long time.If you try to catch a bus after midnight, you'll be waiting until the cows come home.
A sacred cow
is a disapproving term for something that is always respected and never criticised.Cancer charities are such sacred cows that no-one dares complain about them or ban them ringing people up to ask for donations.Click here
for more idioms and common expressions.