brain fart
The term "brain fart" is often used to describe a brief lapse in mental function, commonly resulting in forgetfulness or impulsive actions.
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Definition
B2Everyday Conversation
(informal, slang)A brief moment of forgetfulness or mental confusion.
Example
- I had a brain fart and completely forgot my phone number.
- Sorry, that was a brain fart; I didn't mean to say that.
B2Casual Settings
(informal, slang)A temporary lapse in judgment or reasoning.
Example
- I had a brain fart and turned left instead of right.
- That was a brain fart; I can't believe I made such a simple mistake.
Similar
Terms that have similar or relatively close meanings to "brain fart":