The last person you want fucking your mother, or any of your female relatives for that matter.
"Dad molested me when I was a girl; he's a real serial motherfucker."
by Batfemme75 May 17, 2022
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"Well your dad fucked your mum to concieve you, therefore he's a motherfucker".
by Gardi. September 20, 2022
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a penis that has not formed correctly
he is a fucking motherfucker
by penisman229 November 15, 2022
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A: Did you hear? Denny fucked Lisa's mom!
B: Wow! Denny's a motherfucker!
by yamalamalingdong January 31, 2022
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The pathological cell type identified in Bushcle-Lowenstein tumors. Buschle-lowenstein tumors are a rare benign penile tumor caused by human papilloma virus infection with giant tumor growth but only local tissue destruction; may result in urethral fistula formation. The tumor resembles a cauliflower-like mass. Diagnosis is achieved via collecting cell scrapings of the mass with subsequent identification of motherfucking cells (MFCs) on diagnostic electron microscopy. There has been considerable debate regarding the exact nature, etiology, and treatment of these lesions. Like oral florid papillomatosis and epithelioma cuniculatum, Buschle-lowenstein tumors are considered to be a regional variant of verrucous carcinoma. MFCs have been observed on samples involving the penis, vulva, scrotum, bladder, and perianal or anorectal regions. Management of these tumors is controversial, but involves chemotherapy, radiation, and surgery.
The motherfucking cell was identified on diagnostic electron microscopy.
by ProfPath March 25, 2017
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It is one of two extremely crucial categories that EVERYONE will eventually take up residency...

A. The Motherfucker

Or,

B. The Motherfucked

**simple reminder**
If you must think about it... my magic 8 ball just told me~
YOU ARE THE MOTHERFUCKED.

Now that I just saved you a day of pondering and possibly whimpering about, you may want to hit up The Motherfuckers section and grab you some BIG BOY PANTS for a change!
There are two types of people in this world: The Motherfuckers and The Motherfucked.
by OklahomaAmazon81 January 29, 2019
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Word basically means ''fuck'' but it's a lot more stronger and it really proves that you don't give a fuck about something.
Person A: Why did you drop outta school?
Person B: Cuz motherfuck school!
by RealmuhfuckaG February 1, 2021
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