かってし 勝手知ったる LinksSentence search for 勝手知ったるSentence search for かってしったるKanji details for 勝, 手 and 知Edit in JMdict Expressions (phrases, clauses, etc.), Noun or verb acting prenominally1. well aware of; know thoroughly; being familiar with (and thus feeling no need for restraint) Discussions Log in to talk about this word.