idioms

cross my heart  informal (to stress that you are telling the truth) I’ll clean the room tomorrow. Cross my heart! I didn’t take your bicycle; cross my heart!   – English Vocabulary

  a red herring (a fact or subject that is not important but takes people’s attention away from something that is important) Ethnical disagreement is a red herring to divert public attention from embezzlement. The argument at the inauguration ceremony was indeed a red herring to discredit the president.   …

  a rat race (a way of life in which people compete aggressively against each other in order to succeed) Jason has been in a rat race all his life. And now he is enjoying his retired life to the fullest. (a tiring, crowded, or disorderly rush) The party last …

  a pig in a poke (buy something without seeing it first) I want to see the laptop before I agree to the price. I don’t want to buy a pig in a poke. He is a careless person. He always buys a pig in a poke.     – English …

a party animal (a person who likes going to parties very much) Evan is a real party animal. He’s never at home. How did you manage to pass the exam, being such a party animal?    – English Vocabulary