What is a brain fart?

A brain fart is a colloquial term used to describe a temporary mental lapse or moment of forgetfulness. It is when someone's mind momentarily goes blank or they struggle to come up with a word or thought that they know they should know. Brain farts are usually harmless and can happen to anyone, often triggered by stress, fatigue, or simply being preoccupied with other thoughts. They are typically short-lived and the person is able to quickly recover and remember what they were trying to think of. Brain farts are a common occurrence and are not a cause for concern unless they happen frequently or interfere with daily functioning.