ふっきん 腹筋 LinksSentence search for 腹筋Sentence search for ふっきんSentence search for ふくきんSentence search for はらすじKanji details for 腹 and 筋Edit in JMdict Noun1. abdominal muscles; absNoun, Suru verb, Intransitive verb2. sit-up (exercise)Abbreviation, Only applies to ふっきん, Only applies to ふくきん, See also 腹筋運動Other forms腹筋 【ふくきん】、腹筋 【はらすじ】 Discussions Log in to talk about this word.