1 definition by Sagarixue

Top Definition
If it's used in a specific context it's considered to be an equivalent to "my sweetheart" or "mine" otherwise my mine means that you own a mine ( a deep hole in the ground for extracting coal or other minerals by digging ), however its a slang word which means it's not grammatically correct ofc.
Don't you dare get close to Emma! She's my mine.
via giphy
by Sagarixue April 22, 2020

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