gongpit
The cesspit of a latrine or outhouse; a latrine or outhouse itself.
obsolete
On þære nyðemestan fleringe wæs heora gangpyt & heora myxen.
Where it comes from
From Middle English gonge-put, from Old English gangpyt, equivalent to gong (“latrine, outhouse”) + pit.
Adapted from the Wiktionary entry gongpit (CC BY-SA 4.0).