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brain freeze

noun Informal.
  1. Also called ice-cream headache. a pain in the temples and forehead brought on by quickly consuming very cold food or drink.
  2. a temporary lapse in memory; a sudden mental block.
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Origin of brain freeze

First recorded in 1990–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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