killing ground
/ˈkɪlɪŋ ɡraʊnd/noun
1An area in which animals, especially seals, are hunted and killed.
2 Military. An area exposed to concentrated fire or bombardment, leading to high numbers of casualties among soldiers operating there. Also (in extended use): any place in which large-scale death or destruction occurs.
Origin
Late 19th century. From killing + ground.