Usually the result of tampering with the insides and doing irreversible damage. Bricking your hardware leaves you with a new paperweight. Can be the end effect of a faulty flash or firmware update, a modification (mod) gone bad or being struck by lighting, to name a few.
I tried to change graphics cards while my computer was running but I only managed to get my machine bricked.
See also "brick"
2: On December 31 of 2008 all the 30gb Zunes were bricked because of an internal clock glitch.
3: My cell phone was bricked when I fell in that puddle.
4: To brick
Jim's trying to overclock his CPU. I keep telling him he's going to brick the whole the.
2. When a peice of technology (or a person) fails miserably.
"I was at the movies and someone's cell phone went off. She actually answered it and proceeded to have a five minute conversation with the person before she hung up. So I bricked her."
Which is to render any piece of technology, as useful as a brick. Therefore if some piece of technology is 'bricked' it is as useful as a brick, ie. it does nothing.
Wooderson: "Bummer about your party, man."
Pickford: "What can I say? It's beyond me. The delivery guy bricked."