Top Definition
A step mother who tends to control people who they have no right to control, such as step children. The step bitch is known to control the biological father of said children to a point of totalitarianism within the household.
"Tom told me that the lady his dad just married is turning out to be a HUGE controlling step bitch!"

"I can't believe Carrie, what a step bitch, jeopardizing my relationship with her step daughter!"

"My step bitch is making me do all the chores because she thinks I don't do anything!"
by Daniel Rodrigues October 15, 2008

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One's woman on the side, whom lacks significance and/or priority.

Also, it can signify an unimportant person, whether male or female.
Don't worry about Tanisha. She ain't nothing but my step-bitch.
by Toyin Oluwole December 12, 2007

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1. The girlfriend of your brother.
2. Your brothers bitch.
My step-bitch is fine AF.
by CallMeJeff February 15, 2015

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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A step mother who is a total bitch
My stepbitch got a purse made for a 5 year old for my birthday. Total StepBitch move.
by Breana Abrams February 16, 2009

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt