Any woman in a relationship (usually marriage) with a man having one or more children from his last partnership. As far as getting along with dads new mate some step-kid's do and some step-kid's don't. Bottom line is that this woman wants to be with the guy so much that she is willing to step-up to the situation.
A group of young-adult's are having a discussion about their parent's and one says " You guy's who's folk's are still together are fuckin' lucky...my step-mom is a BYATCH, always acting like my mom and shit." Someone else says, " My step-mom is awesome, she don't make me do nuthin' and I ain't neva' seen my dad happier."
by jpg3 May 30, 2011
The most frustrating person you'll ever meet. She can be lit sometimes but 5 seconds later she'll be screaming at you from some dumb shit. You may even be chilling on the couch and she'll degrade your existence. She can't keep her mouth shut for a minute and just says whatever the fuck she wants. You're dad won't do shit because he doesn't want taste her wrath for good reason.
You: (just on your phone in your room)
Step mom (little devil) : (BANGS DOOR LIKE SHE WANTS TO KILL IT OR SOMETHING)
You: What the fuck
Stepmom: OH MY GOD YOU'RE SO LAZY! YOU DON'T DO SHIT! I AM HOLDING UP THIS HOUSE AND YOU'RE ON YOUR LIL PHONE TEXTING ALL YOUR FRIENDS! HOW THE FUCK ARE YOU GOING TO LIVE BY YOURSELF?! GOD YOU ARE SOOOOO USELESS I DON'T KNOW HOW YOUR DAD DEALS WITH YOUR ASS!
You: What the fuck
Step mom: (Slams door and continues to scream how "useless" you are)
You: What the fuck
You: Do you hear this shit dad
Dad: Same thing happened to me 5 minutes ago
by Life hurts me mentally March 5, 2019
an evil being whose sole purpose is to make her step childrens' lives as miserable and unenjoyable as possible until the child can't take it anymore and moves out, leaving the step mom with the house, the car, and the finantial stability. She is also seen as "sweet" and "caring" by people who do not know her personally.
My step mom called me a royal bitch yesterday for no reason at all.
by spiteful_stepdaughter April 19, 2005
A very Bitchy person. cannot suport herself, thus dating a man for his money. Always hates the children because they use the dads money and attention. Always hates the real mom. Never does helpful trhings without complaining. Acts nice to people that give them money. Hates even there own children. Big babies, super overdramatic.
Step mom: Welcome to our Home
Person: Heres the $50
Step mom: Thanks you can go now, Honey come here I have a papercut
Dad: ya get a bandaid and stop whining my daughter broke her leg
Step mom: Why don't you love me?
by Stacia Laurence January 4, 2010
A woman who wanted to fuck your dad who dragged you away from your mom by lying and cheating and playing social games and made your life miserable because she only cares about spending your dad’s money and not you and tells you how awful your mom is when your mom loves you and she does not.
My step mom told me my mom is stupid and crazy then yells at me every night when she comes home from work and daddy yells at me if I tell her she’s not my mom!”
by Loveyoutillforeverandback September 12, 2020
A woman whom has stepped into your life without caution and once she's been fucking around with your dad for about 2 weeks she thinks she owns him and wants you out of the picture. Basically, a fucking step mom is a wannabe mom, bitch, whore and someone who wants YOU out of the picture, and this cunt always gets her way...
Daughter: Daddy can I have some ice cream?
Dad: Um, I gues--
Step-Mom (Dad's Girlfriend): HELL NO!!!!!! YOUR FAT ENOUGH AS IT IS YOU LIL BTCH CUNT WHORE!!!
by Kate<3'sMr.Mathers February 13, 2012
A crazy bitch with no job who does nothing but watch TV, bitch, and eat. She spends about 12 hours of her day in front of the TV, and the rest sleeping. She manages to con her new husband into giving her whatever she wants, and does everything she can to make living in that particular house a living hell.

Others who don't live with her think she can be a sweet person, but don't be fooled - she is nothing more than a succubus (assuming she's one of the good looking step moms). Otherwise, she's just some random crazy fat bitch your dad boinked after one too many cocktails.

Total bitch.
Any bitch that your dad decided to live with is an example of a step mom.
by Joexi April 30, 2011