grist for the mill
US /ɡrɪst fɔr ðə mɪl/
UK /ɡrɪst fɔr ðə mɪl/

1.
bahan bakar, bahan berguna
something that can be used to your advantage or to support an argument or cause
:
•
All the criticism he received was just grist for the mill, making him work even harder.
Semua kritikan yang diterimanya hanyalah bahan bakar, menjadikannya bekerja lebih keras lagi.
•
The politician used the recent scandal as grist for the mill in his campaign speech.
Ahli politik itu menggunakan skandal baru-baru ini sebagai bahan bakar dalam ucapan kempennya.