home turf

Trotter had fewer resources but he was playing on home turf.

After all, it's hard to win an early primary if you haven't already locked up your home turf.

But in 1909 Petrosino went on a secret mission to investigate the Italian underworld on its home turf.

The band are currently on home turf—hence the suburban setting for this surprisingly unsaucy snap—doing a series of live shows.

This is personal—an ideological fight playing out on their home turf.