The saying "He is as cunning as a Shithouse Rat" is used to refer to someone who is expertly sly and/or sneaky. A shithouse rat being of a lower class than even a regular lowly rat, makes this form of cunning even more underhanded.
This term does not refer to anyone's "mental state".
Don't take your eye off him for a second! He's as cunning as a ShithouseRat.
Phrase old fuckers used to use to describe really fucked-up seemingly normal people. All bets are off in this situation because now this means the batshit crazy person loses their shit pretty fast and wants to fuck someone up real bad. My advice: run. The short modern version is: crazier than a shithouse rat. The clean version is: crazier than a rat trapped in a tin hen-house, but dont' even use this version around more than three women who are over 30 or they will fold their arms, lower their head a little while glaring at you --like you just offended their pussies.
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.