from eric raymond's jargon dictionary....

brain fart n.

the actual result of a braino (as in 'typo'), as opposed to the mental glitch that is the braino itself. e.g., typing 'dir' on a unix box after a session with dos.

yeah right... :)

untungnya di linux dah bisa typing 'dir' dan tetep keluar isi dari directorynya.. brain fart yang terasa gotchanya kalo terbalik... yaitu typing 'ls' di command prompt.. bad command or file name pun keluar tanpa ampun...