As usual, I was mentally translating everyday, common things the other day for practice and wanted to say blah blah blah, but I wasn't sure if there was an already established way of saying this in Esperanto. Is there?
- Bla bla — blah blah
- Um um um — mumble mumble
- Babil babil — natter natter
- Klaĉ klaĉ — gossip gossip
I think most European languages use the blabla formula.