draw a blank
idiomPart ofblank
draw a blank — idiom
1. to try to remember or find something but fail completely, so your mind or your s
1.idiom
Definition
to try to remember or find something but fail completely, so your mind or your search returns nothing useful.
Example
Detective Reyes drew a blank when she searched the database for the suspect's fingerprints.
Lior drew a blank in the spelling bee and had to sit down silently.