たんこぶ Also written タンコブ, たん瘤 Meanings Noun bump (e.g. on forehead); lump; protuberance; swelling See also: こぶ. Words containing たんこぶ 目の上のたんこぶ (めのうえのたんこぶ) a thorn in one's side Word lists Colloquial Jinuma: Japanese Dictionary · Word lists