Learn English Phrases & Idioms With "dog" - Free English lesson In this English lesson by Niharika you will learn Idioms and expressions with dog, you will find key phrases with an explanation, example sentences, and other ways of saying the same phrase. 1. Every dog has his day Meaning : everyone will have his chance or turn, everyone will get what he deserves Example : "Dont worry about him. Every dog has his day and he will eventually suffer for all the bad things that he is doing." 2. A dog with two tails Meaning : To be very happy Example :Ben's team won the match. Their manager was like a dog with two tails. 3. An old dog will learn no tricks Meaning : it is difficult for older people to learn new things Example :You can't teach an old dog new tricks and I do not think that my father will ever change his eating habits. 4. let sleeping dogs lie Meaning : do not make trouble if you do not have to Example : You should let sleeping dogs lie and not ask our boss about the dispute. 5. as sick as a dog Meaning : very sick Example : My friend was as sick as a dog when he left the restaurant last night. 6. Dirty dog. Meaning : A low and sneaky person. Example : That dirty dog tried to cheat in the card game!