half-baked idea

(noun) an idea that is very unlikely or unrealistic

Example Sentences:

A: I have an idea of how to improve our English school.
B: Okay, what is it?
A: I think we should force our teachers to live in each student’s house for one week. Then their English will be perfect.
B: That seems really far-fetched. Our teachers won’t want to do that!

When Robert decided that he shouldn’t go to University, because he could make more money as a shoe salesman, it was a half-baked idea.

From the Blogs:

A Half-Baked Take That Leaves a Good Story Untold

Media:

Similar idioms:

1. far-fetched
2. toy with the idea
3. half assed
4. half-hearted
5. a penny saved is a penny earned
6. cover one’s half