From Wiktionary, the free dictionary
- 허북이 (heobugi), 허벅 (heobeok), 허벅이 (heobeogi)
From Jurchen, related to Manchu ᡥᡝᡶᡝᠯᡳ (hefeli, “belly”). See 허벅지 (heobeokji, “thigh”) for more.
허북 • (heobuk)
- (Yukjin, northern Pyongan, Yanbian) lower belly
- 허북대 없다 (heobukdae eopda, “to have no guts, to be cowardly”)