がみこうかん ちり紙交換 LinksSentence search for ちり紙交換Sentence search for ちりがみこうかんSentence search for チリ紙交換Sentence search for 塵紙交換Kanji details for 紙, 交 and 換Edit in JMdict Noun1. collecting waste paper (old newspapers, etc.) and exchanging them for toilet paperOther formsチリ紙交換 【ちりがみこうかん】、塵紙交換 【ちりがみこうかん】Notes塵紙交換: Rarely-used kanji form. Discussions Log in to talk about this word.