not returning a favour,
not returning a shout at the pub,
drinking the last half pot of beer out of a jug you didn't buy,
cheating - especially when when what you're doing is not competitive
sam: "yeh, what a f*ing dog-act!"
Zoran: "Yeah man 100% for sure!"
Steve: "Hey have you guys seen Zoran, he said he was coming?"
Josh: "Nah Zoran's a dog, just one of his many dog acts probably."
GBK: terence that was a dog act man your so right!(sarcasm very much so present throughout tone) god giraffes !