brain cramp
noun
plural brain cramps
chiefly US & Canada, informal
: a mental lapse caused especially by carelessness, forgetfulness, or inattention
Occasionally, I suffer a brain cramp when it comes to names in the column. And last Sunday, I had a doozy. I referred to the late Coeur d'Alene architect R.G. Nelson as "Ralph" Nelson. His first name is Robert.—
Dave Oliveria
Amid such a polished performance, [third baseman, Chipper] Jones' brain cramp stood out. He lost track of the count in his fourth at-bat and started up the baseline after ball three.—
Associated Press
called also (somewhat impolitely) brain fart
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Merriam-Webster unabridged



