back to the drawing board
US /bæk tu ðə ˈdrɔɪŋ bɔrd/
UK /bæk tu ðə ˈdrɔɪŋ bɔrd/

1.
kembali ke awal, mulai dari nol
to start again on a plan or idea because the previous one has failed
:
•
Our first attempt failed, so it's back to the drawing board.
Percobaan pertama kami gagal, jadi harus kembali ke awal.
•
The client rejected the design, so we're back to the drawing board.
Klien menolak desainnya, jadi kami harus kembali ke awal.