A nasty, sneaky person: You're the dirty dog that snuffed my brother
A man passing another was halted by the words: "You dirty dog!"
A slacker is a dirty dog who does what I wanna do but am afraid to do.
What, you dirty dog, you try to swindle me and then expect me to drink with you?
"Well, don't be a dirty dog," said Summertown, in conclusion.
"Shooting was too good for 'im, the dirty dog," said Private Hawke, as he lit a woodbine and turned away.
He was only waiting for one other proof of this dirty dog's treachery.
You wouldn't dare do that if I had my hands free, you dirty dog!
It seemed to me that I was singing a solo, and opposite me stood a big, dirty dog, snarling and waiting for me to finish the song.
How, replied his lordship, a dirty dog, is that the return he makes for all the services I have done him and his brother?
Get away, you dirty dog, and mind what you are at next time you attempt to insult a man who did no harm to you.