somebody's patchBritish EnglishBrE informalLIVE SOMEWHERE an area that someone knows very well because they work or live there 某人了如指掌的地区 SYN turf Policemen know what’s going on in their home patch. 警察了解自己辖区的情况。
home patch• Bénéteau went to town in their usual impressive way; it is, after all, their home patch.
→ somebody’s patch at patch1(2)