1. Someone who's head is devoid of nominative brain tissue. Similar to the more common air head the cranium of the subject contains nothing but gas. However in this instance, the gas inside the cranium consists mainly of stinky gut methane.
2. Someone who consistently brain farts.
"I admit that I slept with your best friend, honey but honestly, it didn't mean anything."
"Why don't you just fart off, fart brain?!"
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When you mean to do something really obvious but then you forget what you were doing and end up doing something something completely different. i.e, when you have a wrapper in one hand and food in the other, and throw away the food and try to eat the wrapper.
Brain Fart:
Person 1: Man, I had such a brain fart today.
Person 2: What did you do?
Person 1: I was holding food and a wrapper and threw away the food and tried to eat the wrapper.
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When you are attempting to remember something very obvious, someting that you know you should know. This feeling often leads to head banging and hair pulling.
bobby raised his hand to answer the teacher's question only to find that he had had a brain fart, and he was unable to answer 2+2.
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A sudden and involuntary (although depending on the source, not altogether unexpected) release of ignorance.
Jeff had a brain fart and locked his keys in his car (again!)
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A total lack of recognition.
A silly mistake.
Can be stress related.
"I had a total brain-fart when she asked for my number."
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Blurb in your head outta nowhere, train of thought goes weird
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When something you were going to say but the thought escaped your memory and doesn't return.
I have an idea but now I don't remember what it was, it was just on the tip of my tongue--ugg brain fart!
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