draw a blank : Idioms in English

draw a blank

to forget information that's common, such as what a person ate for breakfast or the name of a friend.
Usage:
At the crime scene, the detectives looked for the obvious clues but mostly drew a blank.

draw a blank Meaning(s)

  • (v) be unable to remember
Lightning fast vocabulary building for SAT, ACT, GRE, GMAT and CAT