bat shit crazy

A clinically insane person beyond the regular diagnosis given to them by a psychiatrist.

Family: "So, did he have a psychotic break? Or is he manic/depressive?"
Doctor: "No. I'm sorry. Your son is bat shit crazy."

by Brainiac March 2, 2005

bat shit crazy

charlie sheen

Charlie sheen went bat shit crazy on ABC's 20/20.

by ladyyyyyyyy March 17, 2011

bat shit crazy

drunk, crazy, destructive, and bad, from NickelBack's "Burn it to the Ground"

I've got a fist full of whiskey, the bottle just bit me
Oh, that shit makes me bat shit crazy

by abra cadabrazz August 16, 2009

bat-shit crazy

adj. (slang): A combined state of mental agitation and physical volatility. It's use may provide warning that the individual it describes has lost all self-control and cannot be reasoned with. Can refer to either a chronic or temporary condition.

I wouldn't go in there if I were you, Dolores is bat-shit crazy .

by maximo hudson January 19, 2009

bat-shit crazy

Acting in a generally insane manner; Tom Cruise.

When Tom Cruise jumped on Oprah's couch, he proved he was bat-shit crazy.

by Lorraine Bates July 30, 2006

bat-shit crazy

Crazy to a degree bordering on complete insanity. The state in which one makes decisions which make the exact opposite of sense.

See also: bat-shit

Why did Erin cheat on you with that greaseball?
- Because she's bat-shit crazy.

by DJ Bitterbarn August 11, 2004

bat-shit crazy

One step beyond just plain crazy. It is usually a temporary thing...sparked by something unexpected, or just really awful.

As soon as he saw me humping his mom, he went bat-shit crazy.

by ithaqua April 13, 2003