Going to see a man about a dog 

An euphemism used to avoid telling of your true destination, often in reply to an awkward question. In Great Britain, it is commonly used as a euphemism for going to the toilet.

"Are you and your wife coming out tonight?" "Uhhhh, I'm going to see a man about a dog."

"How come you're leaving the table?" "I'm going to see a man about a dog."

Going to see a man about a dog by Alexandra July 29, 2004

Going To See A Man About A Dog 

'Going to see a man about a dog' is an often used a euphemism in Great Britain. It is most often used when telling someone you are going to the toilet. It has also been used to describe meeting a woman for sex i.e - when you replace the 'man' and 'dog' in the sentence with their opposites 'woman' and 'cat' (but in this case we use another word meaning cat, 'pussy') so you end up with 'going to see a woman about a pussy.'

'Where you off too?' 'Going to see a man about a dog.'

'Where you rushing off too so fast?' *Man Winks* 'Going to see a man about a dog'

Going To See A Man About A Dog by KDottDizz August 16, 2009

Going to see a man about a dog 

Going to see the "man" to buy something that is possibly illegal.
Going to pick up your supply, supply of whatever it is you require. or just See a man about a dog

I'm just going to see a man about a dog, then we can pipe it up and watch the movie.

Going to see a man about a dog by XXXX May 1, 2003

Going to see a man about a dog 

Slang used while referring to going to have a drink down the pub.

Most commonly used in the North East of England. Due to it being originally derived from people who drink/drank the ex-Newcastle brewed alchohol, Newcastle Brown Ale.

The sentance itself is actually printed on the label of the newer bottles of Newcastle Brown.

Fred: Doing anything decent this weekend?

Bob: Going to see a man about a dog on friday if you fancy coming?

Going to see a man about a dog by iMikey February 10, 2010