step mother 

a bitch that gets a divorse from her husband and moves into your house after your mother dies and screws your dad. she will do anything to buy your love for about a year but then she becomes a total bitch.

kid: can i go out?
step mother: no, you have to finish your homework!
kid: i did already.
step mother: no, your staying home to clean your room then!

step mother by ~Jenna~ May 1, 2006

Step mother 

Step mother Are womans who can be a mother to a another child she didnt gave birth to and has to take care and sometimes be rude as hell

Child : GET AWAY FROM ME STEP MOTHER WHY ARE YOU TAKING MY LAPTOP AWAY

Step mother : I DO NOT CARE CHILD YOUR PUNISHED AND GROUNDED FOR A MONTH

Step mother by Kickoff2ndOP May 1, 2021

Step mother 

A step mother is a women who cares loves and carries you through life. She is the women who married your father and is also the women who married into your family to be part of it and respect the ones in it she loves you like her own child she may not have gave birth to you. But she acts like she did.

Step mother come eat kids I made dinner
Child thanks for dinner
Step motherYou don't have to thank me for feeding you.

Step mother by Yddadrow1234 January 7, 2019

step-mother 

the opposite of acting mother, also known as a c#nt. if you're not a bad b!tch or a queen, you're a step-mother. The opposite of serving

You're giving step-mother (Derogatory)

step-mother by tipsyguttergirl May 2, 2023

step-mother fucker 

A man who is a step lower on the social rung than a plain ol' average motherfucker.

Brian thought the was a bad mother fucker...but he's worse than he thinks...he's a step-mother fucker.

step-mother fucker by DOTK April 1, 2010

step-co-mother-in-law

Stepchild-in-law's mother.

My step-co-mother-in-law is a good person.

step-co-mother-in-law by Wonbig October 13, 2021

step-co-mother-in-law

1- Stepchild-in-law's mother.
2- Child-in-law's stepmother.

Step-co-mother-in-law.

step-co-mother-in-law by UserXDXP April 25, 2023