This has 2 meanings:
1. Literally it means someone who has sex with his own mother, but this word is hardly used in this context(Just like when you call someone a bastard, you don't mean he is a bastard child, when you call someone a mother fucker, you are usually you are not implying that he is someone who sleeps with his mother).
2. The mother of all fuckers(this is what people actually mean when they call someone a mother fucker).
1. Literally it means someone who has sex with his own mother, but this word is hardly used in this context(Just like when you call someone a bastard, you don't mean he is a bastard child, when you call someone a mother fucker, you are usually you are not implying that he is someone who sleeps with his mother).
2. The mother of all fuckers(this is what people actually mean when they call someone a mother fucker).
definition 1:
Tom: Go fuck your mother...
Jerry: Only a mother fucker(the context of this word is literally someone who has sex with his own mother) like you will do such things.
definition 2:
50 cents: Yo mother fucker! wassup!
Eminem: yo fiddy...nothing much...hows it going?
Tom: Go fuck your mother...
Jerry: Only a mother fucker(the context of this word is literally someone who has sex with his own mother) like you will do such things.
definition 2:
50 cents: Yo mother fucker! wassup!
Eminem: yo fiddy...nothing much...hows it going?
by kundinella@1 January 30, 2018

This is the GOD TIER of comebacks. Worse than “Your mom gay”, “Your dad lesbian”, Your granny tranny”, and “Your sister a mister”. No escaping, or deflecting this. You are all doomed...
Ricky: “Your mom gay”
John: “Your dad lesbian”
Brittney: “Your granny tranny”
Jake: “Your sister a mister”
Me: “Your brother a mother”
*Everyone dies*
John: “Your dad lesbian”
Brittney: “Your granny tranny”
Jake: “Your sister a mister”
Me: “Your brother a mother”
*Everyone dies*
by Ephexia May 14, 2018

“ the mother fucker is incest”
by RapaTuMadreLLC September 13, 2021

by HonestlyBitch July 27, 2016

by Sonyc September 22, 2023

A phrase used by math teachers as a substitute for mother fucker. Originated from a math teacher by the name of Mr. Avasan.
by Mysterious R November 27, 2018

Get that damned mother against drunk driving to give me my promised car and license of I detonate their next event.
by Cody5050 November 9, 2020
