quasi-husband. A term that is for a long-term significant other or domestic partner (male), often cohabiting, who is too serious to be called a "boyfriend" but yet does not qualify to be called a husband according to the legal definition of traditional marriage.
Please RSVP for me+1. I will be bringing my quasband James.

Oh, Maria and her quasband Rob have been together for almost 8 years now. They just bought a house.
by almafuerte January 29, 2012
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