The Wictionary definition of a brain fart :
(figuratively, slang) Something ill-considered and said or done impulsively.
That expression pops into my head every time Trump comes out with another of his childish Twitter outbursts (which is almost daily). The trouble is, because of his surname, I am starting to think of them as brain trumps instead!
Is it just me? 
Someone needs to go back to Junior School himself.

