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

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

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