hahahhahha it arises from a joke. A Dog wants to be a man. he wants to get a complete make over.after he the operation the doctor says "You are the man now dog".(Continued story : The dog i mean the man now goes to the street .There he sees a cat. He chases the cat. ). The Phrase Linguistically is related to old habits never die.
just a sarcastic Phrase.
hey look at wise guy,hey,"You're The Man Now Dog".
when will you start thinking,You're The Man Now Dog.
That drunken bitch,You're The Man Now Dog.
hahahahhahahahahahaha still the same You're The Man Now Dog
You're The Man Now Dog You're The Man Now Dog You're The Man Now Dog
by dudecool August 26, 2006
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A horrible cancer upon the internet. It started off with a website which would loop that phrase... a few months later, a website appeared with 4 pages of such things. There are well over 100 pages full of these sites now, and they grow in the 10's of pages daily.

These sites will soon reach critical mass and implode upon themselves, collapsing the internet and causing the downfall of human society. (in which it will be replaced by a society controlled by Swiper the Fox)
ytmnd.com for all the billions of such terribly entertaining yet dangerous sites
by Vee Are Are Schee May 4, 2004
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Alternative name for the Australian Shepherd (Aussie) dog breed.

Single Man Dogs are typically accompanied by their single man owners at the dog park looking for women to hit on.
Scenario 1 at your local dog park

Person 1: Do you think the single man will seal the deal this time?
Person 2: He never does.

Scenario 2 married man comes home with a single man dog

Husband: Honey I got us an Australian Shepherd.
Wife: You bastard! We are through!
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That one Asian friend who says “wood my bad” after someone says my dog went missing
Lil John:My dog went missing last night I hope he’s ok
Friends:yeah me to
Asian man with a dog:Oh my bad
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An idiom meaning 'extremely crowded' or 'A lot of people' . Mainly used in past or future tense to describe how busy a place will be and/or was.
John: Want to go to Walmart?
Fred: Nah, its Black Friday, Every man and his dog will be there.
John: True that
by PooChode January 14, 2016
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Phrase used to conceal one's true destination, especially in response to an awkward question. Is commonly used in Britain when one is headed to the toilet. See also going to see a man about a dog
"Are you and your wife coming out tonight?" "Uhhhh, I need to see a man about a dog."

"How come you're leaving the table?" "I need to see a man about a dog."
by Alexandra July 29, 2004
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