get one's brains fried
get one's brains fried {v. phr.}, {slang}, {also used colloquially}
1. To sit in the sun and sunbathe for an excessive length of time.
Newcomers to Hawaii should be warned not to sit in the sun too long — they'll get their brains fried.
2. To get high on drugs.
He can't make a coherent sentence anymore — he's got his brains fried.
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Source: A Dictionary of American Idioms
