neth·er re·gions • pl. n. the lowest or furthest parts of a place, esp. with allusion to hell or the underworld: rumors of strange creatures hauting the lake's bottomless nether regions. ∎ (one's nether regions) used euphemistically to refer to a person's genitals and buttocks.
"nether regions." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (January 16, 2019). https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/nether-regions
"nether regions." The Oxford Pocket Dictionary of Current English. . Retrieved January 16, 2019 from Encyclopedia.com: https://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/nether-regions