(noun) a guy who is primarily interested in romancing other people's girl friends. Immortalized in the 1950s by the Everley Brothers in a song of the same name.
"Hey, bird dog, lay offa my quail!
Hey, bird dog, go chase your own tail!"
used in the trucking industry - especially on the CB radio as truckers talk to each other.
A bird dog can be noun which means a radar detecter.
Or can be a verb which means a law enforcement officer is paying particular attention to a trucker
noun: "I've got my bird dog on."
verb: "That cop has been bird dogging me for the last five miles."
A.) (v.) To stare at the opposite sex in an obvious manner, such as a bird dog, like a Pointer, would do when the hunter has shot a bird.
B.) (v.) To stare while shading your eyes from the sun with your hand.
C.) (n.) A dog that hunts birds.
A term often used by those with limited mental capacity to emphasize they would like something unpleasant done that they would not like to do, or are unable to do themselves.