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An incredibly lucky person; one who falls into good fortune. A: "I won another bet in the basketball tournament—that's three in a row now!" B: "Wow, you lucky dog!" Just when he was looking to take some time away from work to focus on raising his kids, the company began offering really excellent voluntary severance packages to reduce the number of staff. What a lucky dog, huh?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
Fig. a lucky person. You won the lottery? You are a lucky dog!
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
n. a lucky person, perhaps undeserving. (Also a term of address. Older than the more recent use of dogg = buddy, guy.) Bart was a lucky dog because he won the football pool.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.