You know what I mean checks that the listener has followed your point. It was a bit much, you know what I mean.
It asks for agreement rather than for understanding, and it often follows something left half-said. Overused it becomes a filler and stops meaning anything at all.
1phraseyou know what i meanChecking that the listener has followed your point.
“He is not unkind exactly, you know what I mean.”
you know what i mean is a phrase.
Practised in Small Talk & Everyday Phrases