at loggerheads (with someone) (over something)
US /æt ˈlɑːɡərˌhɛdz/
UK /æt ˈlɑːɡərˌhɛdz/

1.
berselisih, bertengkar
in dispute or disagreement
:
•
The two departments have been at loggerheads over budget allocations for months.
Kedua departemen telah berselisih mengenai alokasi anggaran selama berbulan-bulan.
•
The neighbors are constantly at loggerheads over the property line.
Para tetangga terus-menerus berselisih mengenai batas properti.