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1) Someone who fully understands you, whom you look up to, typically in a motherly way. Like a soulmate, but not someone you want to marry and make babies with. The mother of your soul.

2) The concept of multiple lives merged with a time machine that is off. You share the same soul, or your soul is birthed from the soul of your soul mother.
Oh my gosh, it's like we're the same person, except that it's also like she's my mom! She's my soul mother!
by scarlo February 06, 2014
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