"That's dog" is a direct translation of a French expression "c'est chien" which is used normally as a third party comment to describe the fact that someone is being unfarely treated, or is said of a comment that is very nasty about something, someone.
Did you see this? A man walked to a begger and spit in his cup, That's dog!
Jack: Aidan and Katie went dogging again by the canal...
Benji: No surprise there. That boy is either at the lab or dogging and it's fumehood shutdown!
Working slowly or just pretending to work, when supposed to be working; particularly if others are working their fair share
I'm fed up with that Ralph, always dogging it on Mondays. I have to pick up his slack!
Man's best friend, next to TV.
Hey, your dog is blocking the screen!
Brit. slang
Having sex in a public place.
e.g. parks, behind the bars, in toilets and...
Oh man, dogging that bitch last week gave me gonorrhea!
Being lied to and left out/duped out of sumthing u deserved/were promised
Omg, i've just been dogged. I can't beleive amy gave that job to that stupid flat nosed bitch, she said it was mine!!!