knocked for a loop

While kids who are developing typically and have many resources will be knocked for a loop, they will likely get back on their feet fine in the end.

She’d clearly been knocked for a loop, but she was trying to act more with-it than she was.

Was it simply that rainfall would rarely suffice for their farming methods, with seasons of adequate rain giving rise to hopes that droughts then knocked for a loop?

Worse, on any particular page, we might hear that René is knocked for a loop, clutching at straws, growing up before my eyes, losing his bearings.

How to do that, if you are creative person knocked for a loop by the election?