i heard that - You're talking to yourself and pretending you're not. You're

You're talking to yourself and pretending you're not. You're trying to trick someone into thinking it was their idea.

I heard that we should rob the bank. Yeah, that was totally your idea. You’re welcome.

I heard that we should eat the whole cake. Yeah, that was totally your idea. You’re welcome.

I heard that we should start a band. Yeah, that was totally your idea. You’re welcome.