look up any word, like eiffel tower:
 
1.
When someone is really lucky.
Me: "John and I played poker all night. He had pocket Aces three times in a row."
Friend: "What a Lucky Dog."
by KB420 August 29, 2008
 
2.
To throw up after a night of heavy drinking, adapted from the following punchline:

"When I got home last night I blew chunks"
"What's so bad about that?"
"Chunks is my dog"
You should've seen me this morning - I lucky dogged in my favourite shoes. Minging.
by Mister_Oz October 16, 2006
 
3.
While doing a woman doggy style you spin her around just before you cum and blow your load in her mouth.
My old lady gave me a lucky dog last night. She swallowed the whole load.
by AJ19692002 November 29, 2007