Crusty ass mother fucker 

Than one guy/girl that basically has sex with their girlfriend in front of everyone

-That’s Bitch Devon he’s one crusty ass mother fucker
-I know right him and Emma are basically are having sex in front of the whole biology class

Crusty ass mother fucker by _Lukster_ May 28, 2018

RMF (Real Mother Fucker) 

Genetic real son and mother do piv. son then becomes a real mother fucker.

Real as it can be, never actually seen a RMF (Real Mother Fucker); just like they say, inscrutable, volatile, a bit tricky to deal with.

RMF (Real Mother Fucker) by sweetmouthnipple69 August 22, 2018

Dog dicking mother fucker 

A male family member that pricks you over at the most inopportune times

God damnit gary you dog dicking mother fucker you grumped my ace

Dog dicking mother fucker by captainhook105 November 15, 2018

shit balls mother fucker in your mamas cooch

the act of wiping your friends moms ass with your balls then sticking them in her cooch (vagina)

last night me and your mom did shit balls mother fucker in your mamas cooch.

shit balls mother fucker in your mamas cooch by awesome24678 May 26, 2010

skeeted up like a mother fucker. 

In Sulphur Springs, to be" Skeeted up like Mother Fucker" is to high as balls on cocaine.

according to qui-qui, they was" skeeted up like a mo-fucker " that night.

skeeted up like a mother fucker. by Marina June 24, 2004

dick ass mother fucker 

basically just alot of words in one to insult someone

that guy was such a dick ass mother fucker

dick ass mother fucker by CronanDrkGameYT June 24, 2018

Fake Ass Mother Fucker 

Fake ass mother fucker that acts like they you they friend but harbors ability to keep you at tap when you quickly respond to they messages and all they do is sleep

Fake ass mother fucker fuck you

Fake Ass Mother Fucker by bitchassmofogetajob April 30, 2016