I've seen these little yappers show up in Telegram group chats and now I have one of my own! The origin of the expression "ERF" have been lost to the mists of time. I say it far too much. I've erf'd in work emails, had my partners tell me they slipped and said it to their families, and turned it into an audio brand of sorts. I'm weird, I know.

Primrose is owned by  Primrose
Art by  Devvv