not writing or visiting someone; losing touch
Idiomatic expression literally meaning 'weasel's path', used when someone stops communicating or visiting, as if they have disappeared like a weasel. Often used in the phrase いたちの道を切る (to cut off contact).
Before I knew it, I had lost touch with him.
I don't intend to cut off contact, but I've been too busy to get in touch lately.
Kanji spelling using the rare character 鼬; mostly seen in literary or explanatory contexts.
Literally 'weasel's path'. The weasel is associated with disappearing suddenly in Japanese folklore, giving rise to this idiom for cutting off contact.