a bone of contention
US /ə ˌboʊn əv kənˈten.ʃən/
UK /ə ˌboʊn əv kənˈten.ʃən/

1.
pokok perselisihan, sumber pertengkaran
a subject or issue over which there is continuing disagreement
:
•
The division of assets became a bone of contention during the divorce proceedings.
Pembagian aset menjadi pokok perselisihan selama proses perceraian.
•
The new parking policy has been a bone of contention among residents.
Kebijakan parkir baru telah menjadi pokok perselisihan di kalangan warga.