blitz (one) out
To surprise, unsettle, and confuse someone. The sudden, blaring alarm blitzed us out—nobody moved until our teacher yelled for us to evacuate the building. I had to sit down because hearing such terrible news really blitzed me out.
blitz someone out
Sl. to shock or disorient someone. The accident blitzed her out for a moment. The second act blitzed out the audience and thrilled them to pieces.