がっこううら 学校裏サイト LinksSentence search for 学校裏サイトSentence search for がっこううらサイトKanji details for 学, 校 and 裏Edit in JMdict Noun1. underground website or online message board for a school where students typically exchange information on tests, commit cyberbullying, etc. Discussions Log in to talk about this word.