Acronym for She Who Must Be Obeyed. Term of endearment for one's wife/girlfriend (or resignation to the nature of your relationship).

The term originates from the H. Rider Haggard novel, "She" (first published 1886). The character Ayesha, known as She-who-must-be-obeyed, the Queen of Death, the White Goddess,of the lost city of Kôr who rules her kingdom with terror, She is the very image of the Femme Fatale. To disobey her or to scorn her is to earn & receive instantaneous death.
I was going to terminate the squirrel I'd trapped, but SWMBO insisted that I release it in a nearby park.
by Andiceman October 26, 2010
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Pronounced 'swimbo': 'she who must be obeyed'. Your wife, dumbnuts! She's the kind that makes you go to SOFEs 'significant-other forced events'!
A gentler form of SWMBO is a GLW: 'good lady wife', rare as a two-talied lizard!
by hammer---;, hytham April 10, 2007
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Abbreviation for "She Who Must Be Obeyed"; used as shorthand for wife, girlfriend, etc. Usually pronounced "swim-bo".
"Oh man, you better make sure you do what SWMBO says or else you'll be sleeping alone for a while!"
by funkybside November 10, 2009
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a controling female member of ones family who does not ask for taskes to be done but barks out orders. SWMBO stands for She Who Must Be Obeyed.
by unodostres123 August 22, 2010
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Someone Who Might Be Oprah: Acronym for an unknown female that commands authority by sheer force of personality and status.
I'm not sure who that SWMBO was but she gave me a new car and some life-changing advice.
by ShouldBeOutside January 23, 2020
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