English Idioms About “Names”
Idiom: By the name of
Meaning: Called.
Example: I met a doctor by the name of John.

English Idioms About “Money”
Idiom: Bet your bottom dollar
Meaning: This idiom is used to say that one can be sure about something.
Example: You can bet your bottom dollar. The whole thing will end tragically.

English Idioms About “Animals”
Idiom: Let the cat out of the bag
Meaning: To reveal a secret, usually accidentally.
Example: She wasn’t supposed to know about it. Someone must have let the cat out of the bag.