look up any word, like dirty sanchez:
 
7.
1.(noun) the shit of a dog
2.(adjective) an extension to the word shit, in a comical sense.
Oi shitdog fellas, I have an idea
by Fiky September 10, 2005
 
1.
shitdog (noun) slang : origin: unknown. meaning: commonly used in the south to describe a worthless redneck. its much more mild and humorous than calling someone a piece of shit, bastard, asshole, or loser. hell, ya might even say it to your own kin, or your good ol boy ned in a joking manner.
whats that ol shitdog up to?

or

that shitdog owes me money

or

you shitdog, you drank my last beer
by shitdog July 10, 2008
 
2.
A derogatory expression directed toward an object or living thing. In reference to a dog who eats its own vomit and/or excrement.
"My friend and boss just fucked my wife. They are complete shit dogs".
by Nelstone September 25, 2010
 
3.
Oh my goodness.
Shit dog, that is the biggest house I ever seen!!
by David September 02, 2003
 
4.
A derogatory word for a black man
Hold your wallet, there's a shit dog
by Catskinner222 September 11, 2012
 
5.
A very good name for that guy in the pub you ll meet sometimes, late in the night towards close. He ll be the one who responds without humour to a friendly "Whassup Dawg?". He may in fact query "what kind of of dog am I then, maaaate?". He may in fact ask you that same question, many, many times.......He may follow you around, constantly trying to find out what kind of dog he in fact is. He ll stand very close, and speak very loudly.

The best course to take, is to pause, even take a few days to consider his query.

After the opportunity has completely passed, use the sample answer below, earning months of future derision from your so-called friends.
"Well, since you keep asking actually you're a shit-dog"
by Cassy1234 August 09, 2006
 
6.
an expression of disbelief
Can also be spelled "shit dawg"
We were in line for 7 hours.
Shit dog!
by Noleen April 13, 2005