It's just emphasis, for a noun.
doggone
INFORMAL•NORTH AMERICAN
adjective
used to express feelings of annoyance, surprise, or pleasure.
Here as the song is between two guys claiming the same woman, it is "annoyance".
2020年5月8日
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It means “God damn” 😀😀
2020年5月8日
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I run a group on Skype called Explicable discussion. we are 3-4 people in the group who take the random topic to discuss every day. if you are interested in, tell me I will add you there happily. it is good to improve communication skills, listening and knowledge, so I started.
2020年5月9日
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These days, it would be considered disrespectful.
2020年5月8日
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A synonym might be: darn, or damn. I think its a very American saying. Perhaps southern United States.