Meanings of wacky ideas in English

The good doctor came home with some pretty wacky ideas.

But there are lots of wacky ideas.

We have some really wacky ideas.

From free education to the environment, many of the apparently wacky ideas he championed have become increasingly central in the intervening years.

You might think that modern chiropractors restrict themselves to treating back problems, but in fact they still possess some quite wacky ideas.