beats me
1
used when one is completely unable to guess or understand something
The origin of the idiom "beats me" is somewhat unclear, but it likely emerged from the idea of being unable to understand or figure something out. It is an informal expression that is used when someone does not know the answer to a question or is unable to explain something.
- Beats me why he wants such a big car.
- It beats me how she got the job.
- What beats me is why she stays with him.
- Sorry, it beats me.I'm not a math expert
- Beats me.I didn't hear the details.