Выгребная яма - видимо результат неправильного дятло-перевода слова pit примерно в таком тексте:
Feoktistov served in the Red Army in World War II and narrowly avoided death after being captured by the Wehrmacht. Commanded to stand at the edge of a pit, he was to be executed by firing squad along with other prisoners. However, the bullet only grazed his throat, and Feoktistov was later able to crawl out of the pit of corpses and make his way to Soviet lines.
