A study of man's best friend shows that the relationship between humans and dogs started 100,000 years ago.
idiomman's best friendfriend an expression meaning a dog ◆ often used in newspapers, on television news etc:In January, dog homes are flooded with calls from families who can no longer offer a home to man's best friend.The video 'Puppy Training' gives new owners some hints on teaching man's best friend how to behave.
man's best friend
Dogs. What would life be like without man's best friend there waiting to welcome you home every day?
man's best friend
Fig. a dog; dogs in general. Man's best friend just peed all over my shoes!
man's best friend
an affectionate or humorous way of referring to a dog.