This is the woman that has married your Ex-Husband.
My Step Wife is so dumb for marrying that man!!!!!!!!
by EMHD February 22, 2008
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Step wife: the second wife of my ex-husband. The step-mom to my kids.
I love my step wife. She is better than the ex-husband!
by HD HO June 27, 2019
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A second wifes husband's Ex-Wife.Especially when the step mother is raising the children as the full-time step mother.
The boilogical mother is the step-mother's "step wife".
I am his second wife. You didn't know I had a step-wife? Yeah, she gave us two beautiful little boys.
by sunshinelollipopgeiger December 12, 2007
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your sugar daddy's or sugar husband's wife that is his sugar mommy.
Who is Tatjana?
She is Maja's sugar step wife.
by sugar family December 16, 2020
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A wife's husband's "other woman" known to the wife; whether openly acknowledged or not.

The legal wife of a woman's, generally a mistress, long-term boyfriend/lover/mate.

Two or more women who share a romantic relationship with one man, but do not share a dwelling/residence.
After spending 25 years with me and simultaneously spending 18 years with her, she was more like a step-sister-wife than my husband's mistress.

Since Warren Buffett never divorced his wife Susie, she and his long-term partner, Astrid, are, for all intents and purposes, step-sister-wives.
by AmberChella March 2, 2011
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