テンパる Show inflections LinksSentence search for テンパるEdit in JMdict Godan verb with 'ru' ending, Intransitive verb1. to become one tile away from completionMahjong, See also 聴牌Godan verb with 'ru' ending, Intransitive verb2. to be at one's wits' end; to be about to blow one's fuse Discussions Log in to talk about this word.