go out (of) the window
US /ɡoʊ aʊt (əv) ðə ˈwɪndoʊ/
UK /ɡoʊ aʊt (əv) ðə ˈwɪndoʊ/

1.
lenyap, hilang
if something such as a quality, principle, or idea goes out of the window, it no longer exists or is no longer paid attention to
:
•
When the company started losing money, all their environmental policies went out of the window.
Ketika perusahaan mulai merugi, semua kebijakan lingkungannya lenyap.
•
All my good intentions went out of the window when I saw the cake.
Semua niat baikku lenyap ketika aku melihat kue itu.