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Your male partner/life partner/significant other who you are not married to but eternally committed to and who you may or may not have a child with.

To be used in place of boyfriend, man friend, significant other, or partner.
"My not-husband got me the prettiest bouquet of flowers yesterday for my birthday." "I'm thinking about getting my not-husband concert tickets."
by Mo Mentum January 04, 2013
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