悪わるい虫むしMeaningsNoun1. undesirable lover (boyfriend, girlfriend)2. passion; temper; irritabilityKanji used悪bad虫insectComposed of悪わるいbad; poor; undesirable; poor (quality); inferior; insufficient; evil; sinful; ugly; not beautiful; …I-adjective虫むしinsect; bug; cricket; moth; worm; roundworm; thing inside one's body believed to influence one's thoughts and feelings; (one's) unconscious; nervousness; fretfulness; …Noun