わこ 割り込みレス LinksSentence search for 割り込みレスSentence search for わりこみレスKanji details for 割 and 込Edit in JMdict Noun1. butting in (to a discussion on a message board, mailing list, etc.); reply from someone who has butted inInternet slang, See also 横レス Discussions Log in to talk about this word.