遅おそレス

noun

late reply; slow response

Internet slang for a delayed reply, especially in emails, chats, or social media. Often used self-deprecatingly or to apologize for a late response.

• 遅おそレスでごめん！

  Sorry for the late reply!

• 彼かれはいつも遅おそレスだから気きにしないで。

  He always replies late, so don't worry about it.