Mother Eff 

A 'cleaner' version of Motherfucker, without the "fucker". However, the term is used as if you were simply saying 'damn' or 'fuck', not as if you were saying MF.

This is often heard in very conservative boarding schools, where the students are warned not to use any explicit language, or severe consequences will follow.

1. "Mother Eff", I got an F in that English paper.
2. mom- "GO TAKE OUT THE GARBAGE"
son- "Right while I was watching the mighty boosh, Mother Eff"
3. "Mother Eff", that sucks.

Mother Eff by weareallmadeofstars July 2, 2009

The Mother Effect 

When a girlfriend smothers and subjugates her boyfriend by taking the roll of his mother. Leaving the boyfriend to act like a child and grow immature. The boyfriend then is often found craving the attention of the "mother" (girlfriend) causing a dependent and unhealthy relationship.

Because Hannah has used "The Mother Effect" on her lover John, he has become a man-child.

The Mother Effect by Big Daddy 400 February 2, 2017

mother effer 

What wholesome people say to avoid swearing.

Grandmother: Oh, mother effer, I just burned my hands on this apple pie!

Granddaughter: Mother who?

Grandmother: Ahhh... Mrs. Effer... yes, she lives down the street. (Runs away.)

mother effer by Joel67 May 8, 2007

Mother Effing Semi-Sorta Groover 

a Buddy that is being a Jerk Face; a group of pals that question your Rad; A phrase used to address your friends that are currently being Lame; Someone that knows about Rad Harmony but chooses to be Lame and Hate on a Fellow Def-Radder;

"You Mother Effin Semi-Sorta Groover, you need to get away from me! You are ruining my Gnarly Rad Harmony!"

"Let the Mother Effing Semi-Sorta Groover's Hate, I am gonna kick back and Celebrate!"

Mother Effing Semi-Sorta Groover by Don_Mayhem January 27, 2010

Mother Effin Sufferage 

An exclamation when something does not go as planned and you become noticeably disappointed.

*drops pot of chili on the office floor*
"MOTHER EFFIN SUFFERAGE!"

Mother Effin Sufferage by ELadyFriend October 24, 2018

mothereffer 

Mothereffer is far less-profane an alternative to motherfucker and more socially acceptable in mixed company.

That mothereffer Frank is the captain of the hockey team and the football team and gets all the fine looking girls!

mothereffer by brandon667 January 14, 2010