Walking in on you stepdad banging your mom doggystyle.
I can't believe I just witnessed the stepdog.
by LHZanzabar February 26, 2012
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A dog you share custody of, and take care of when their real owners are busy
Me: Yo, wanna come smoke dank skank with us after playing DnD?
Stepowner: Nah, man have to visit my stepdog my brother visits at the neighbours after his best friend broke up and moved to Guatemala.
by Young Hopeful February 23, 2018
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