step-wife 

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.

step-wife by sunshinelollipopgeiger January 5, 2008

Step Wife 

This is the woman that has married your Ex-Husband.

My Step Wife is so dumb for marrying that man!!!!!!!!

Step Wife by EMHD February 22, 2008

Step wife 

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!

Step wife by HD HO June 26, 2019

sugar step wife

your sugar daddy's or sugar husband's wife that is his sugar mommy.

Who is Tatjana?
She is Maja's sugar step wife.

sugar step wife by sugar family December 16, 2020

Step-Sister-Wife 

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.

Step-Sister-Wife by AmberChella March 17, 2011

stepwife 

A woman who a divorced man marries, strictly for the purpose to raise his kids, and not to breed anymore.
This woman is sometimes a douchebag

Terri: Did you hear about Greg?
Pete: yeah, he married Cathy, right?
Terri: Yeah, but only as a stepwife, he needed help raising his kids.

stepwife by Vincent Cochise September 16, 2007

Stepwife 

Mistress; Not the wife; adultress; that bitch

I my wife and stepwife met recently and it was not good.
That's guy's stepwife is hot!

Stepwife by MT Man October 30, 2007