はらぐろ 腹黒 LinksSentence search for 腹黒Sentence search for はらぐろKanji details for 腹 and 黒Edit in JMdict Na-adjective (keiyodoshi), Noun1. malicious; scheming; black-heartedNa-adjective (keiyodoshi), Noun2. cruel (contrary to outward behavior); sly; black-heartedManga slang Discussions Log in to talk about this word.