blonde moment

noun

Often Facetious.

1. a brief mental lapse, as of judgment or memory.

   I must be having a blonde moment.

Word History and Origins

Origin of blonde moment¹

First recorded in 1990–95; from the stereotype that blondes are not intelligent

Example Sentences

“Sometimes you hear someone say ‘Dumb blonde moment!’ or just, ‘Wow, I can’t believe I didn’t get that,’ you know, and they laugh it off,” Coleman said.

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"Having a legally blonde moment and I’m not mad about it," Sims captioned the snapshot, referencing Reese Witherspoon's character, Elle Woods, in the 2001 film.

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That was my blonde moment a year ago & 25lbs less!

Read more on Los Angeles Times

When some tried to discourage the Oscar winner from creating more female-focused films, she had a Legally Blonde moment.

Read more on Time