A Dictionary of Slang: http://www.peevish.co.uk/slang/b.htm
Noun. An inability to think clearly, or a moment of forgetfulness. [Orig. U.S.]
1. (idiomatic, informal) A lapse in the thought process; an inability to think or remember something clearly.
2. (idiomatic, informal) Something ill-considered and said or done impulsively.
A total lack of recognition.
A silly mistake.
Can be stress related."I had a total brain-fart when she asked for my number."
An unwarranted interjection in an otherwise controlled environment.Teacher: So you see, we now have only three weeks before the biology exams.
Student: That means I will only have three more driving lessons before my driving test.
Student: Sorry sir, just a bain-fart.
plötzlicher, vorübergehender Ausfall von etwas
Beispieleeinen Aussetzer haben (unaufmerksam sein, nicht aufpassen [und dadurch einen Fehler machen])http://goal.blogs.nytimes.com/2012/06/17/euro...
"Van der Wiel has a brain fart and blindly hits a back pass that is poached by Postiga who walks in and has a shot deflected for a corner."http://www.guardian.co.uk/world/richard-adams...
"Since Rick Perry's 50 seconds of tongue-tied agony in Wednesday night's Republican presidential debate, argument has raged about just how bad Perry's "brain fart" was compared with the famous campaign flubs of the past."