An incomprehensibly crazy person.

NB: Not used to describe a spell of psychotic behavior. A shithouse mouse is permanently insane.
Used as a comparative standard, usually vis-a-vis actual insanity.

The term originated as a more mellifluous alternative to the term shithouse rat; e.g., "as crazy as a shithouse rat."
Did you see Shavonne flip out and claw the skin off Joey Bag's arm last night? I'm glad you dumped that psycho, she's crazier than a shithouse mouse!

I saw the born-again Christians picketing at the train station again yesterday, every one of them crazier'na shithouse mouse.
by pdreezy October 19, 2008
A lowly rodent who, out of desperation, has learned to live alongside man by occupying one of our less-than-ideal structures, the outhouse.

Eternally mocked by the rest of the animal kingdom for it's choice of habitat, it passes through life barely noticed by man except in this phrase: "Poorer than a shithouse mouse"

Clearly indicating that the individual described does not even possess the meager funds required to reside in an outhouse.
After being denied $20 from the ATM machine for lack of funds: "Damnit, I'm poorer than a shithouse mouse"
by Digital Logic May 27, 2003
An exclamation of frustration
I guess my computer has decided to stop having a "turn off" option. Well, shithouse mouse, I'll just have to let the battery run down.
by TFill January 06, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×