Less intense than the experience of "blacking out" when drunk and not remembering portions (or all) of your night, "browning out" occurs when you don't remember something until someone brings it up. It's not a complete blackout, but partial, because you remember once someone refreshes you.
I didn't even remember making out with Bryanne until J-Lo told me (it must not have been that good)! I definitely had a brown out last night.
by Jigga Jaime April 24, 2006
memory loss less severe than a blackout, generally spanning 15-20 minutes and sandwiched by periods of clear to semi-clear recollection, and almost always after a duration of heavy binge drinking.
Stacy had a nice brownout last night, he remembers getting home but doesn't recall eating at Los Tres Panchos.
by scumbunch October 31, 2006
A partial loss of power similar to a blackout, but with less intensity. May cause lights to flicker, electronic devices to turn on/off spontaneusly, etc.
California, in the midst of a constant energy crisis, is apt to have brown outs, especially during the summer.
by pythonspam May 24, 2004