Meaning of the word "go back to the drawing board" in English

What does "go back to the drawing board" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

go back to the drawing board

US /ɡoʊ bæk tu ðə ˈdrɔɪŋ bɔrd/
UK /ɡəʊ bæk tu ðə ˈdrɔɪŋ bɔːd/

Idiom

to start again on a plan or idea because the previous one failed

Example:
Our first attempt failed, so we had to go back to the drawing board.
If this proposal isn't approved, we'll have to go back to the drawing board.