1) She made a whey-brained decision to quit her job without having another one lined up.

2) I can't believe he bought that whey-brained scheme without thinking it through.

3) The whey-brained idea of putting hot sauce in their coffee did not go over well.

4) Sarah's whey-brained comment offended everyone at the meeting.

5) I don't know what was going through his whey-brained mind when he decided to take up skydiving.

6) Don't listen to her whey-brained theories about global warming.

7) His whey-brained approach to budgeting is why he's always broke.

8) I can't believe the whey-brained excuse she came up with for missing the deadline.

9) The whey-brained plan to start a business without any experience quickly fell apart.

10) The company's decision to launch a new product without testing it first was truly whey-brained.