<jargon, humour> 1. The actual result of a braino, as opposed to the mental glitch that is the braino itself. E.g. typing "dir" on a Unix box after a session with MS-DOS.
2. A biproduct of a bloated mind producing information effortlessly.
A burst of useful information. "I know you're busy on the Microsoft story, but can you give us a brain fart on the Mitnik bust?"