Muher-Fukker 

1) a rude person
2) a bad person
3) a motherfucker

John is one stupid muher-fukker.

Muher-Fukker by Revm7r January 29, 2003

National Castrate-a-Muther-Fucker Day 

April 24th

No definition needed
#nationalcastrateamutherfuckerday

you touch a human wrong, especially on this National Castrate-a-Muther-Fucker Day , ANYONE has the right to castrate-a-muther-fucker by means of their choice.

National Castrate-a-Muther-Fucker Day by SteveNeffer April 19, 2021