(colloquial) You are familiar with the situation I am describing; used to establish common ground with the interlocutor
2011, Phil Zuckerman, “Mother Was An Exorcist” (chapter 1), in Faith No More[1], page 31:
I think there's a value to having a reverence for something bigger than yourself, you know: "There's something out there." Sure, you know what I mean?
2001, Susan Perabo, The Broken Places[2], page 141:
Like when you've sung along with a song a thousand times but you know it so well that the words don't even mean anything anymore. They're just bits of air coming out of your mouth. You know what I mean?
2020, The 1975 (lyrics and music), “If You're Too Shy (Let Me Know)”, in Notes on a Conditional Form, track 16:
I'm trying not to stare down there / While she talks about her tough time / Girl of your dreams / You know what I mean
