sub-cranial-flatulence
The proverbial "brain fart". Also known as "scf". Making a silly mistake. A small, yet ridiculous blunder.
"I was suffering from some sort of "sub-cranial-flatulance" that day, my bad."
"You should take sumthin' fer that "SCF" of yours... "
"You should take sumthin' fer that "SCF" of yours... "