American Dictionary

Define dictionary terms easily in our powerful online English dictionary.

Searching for...

No matching words found

Try a different search term or browse the dictionary

Definition someone must be mad (to do something) in American English

someone must be mad (to do something) phrase

phrase
1

used for saying that someone is doing something very stupid, or has done something very stupid

Example

You must be mad to sell that beautiful house.

Synonyms and related words
Definition someone must be mad (to do something) in American English