かいこちゅう 懐古厨 LinksSentence search for 懐古厨Sentence search for かいこちゅうKanji details for 懐, 古 and 厨Edit in JMdict Noun1. nostalgic person; person who prefers the good old days; fuddy-duddyInternet slang, Derogatory Discussions Log in to talk about this word.