I really don’t need no light to see through you. — A brutal way to tell someone that they are absolutely
transparent. This idiom entered popular culture in 1982 as a result of the quite danceable late disco track by the same name sung by vocalist Jeffery Osborne.
A useful insult in an age of MAGA
Republicanism.
A more
contemporary version of this is insult is the more versatile “I see you” — which can either be an insult or a statement of deep connection and engagement.