The word when said, may indicate that is going to be a difficult situation, a hard time, or something is, or will be, happening to them (you or everyone) that is bad (we guess), a bad day, a bad time or perhaps a stressful situation. This expression is more often said by the Black, so-called African-American, Negro race more often than other races, and is sometimes heard as an expression or expressed for some unknown reason to everyone around leaving everyone to wonder what is going wrong in this person's life.
Jack, a homeless Negro man, awakened from his sleep after a night sleep in a homeless shelter and says to Toby... "Today is going to be a mother fucker!"

Toby… yep!
by Billy BullSchitter April 21, 2016
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A Step-Fater. One who fucks his step sons mother.
My Step-Father is fucking my mother. Hence, he is a Mother Fucker.
by Joel Osterman May 30, 2005
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An expression used when you envy someone's good fortune.
"Mother fucker! You got her and I didnt?"
by Gordon March 11, 2004
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Some one who fucks their Mother.
"dude, last nite i was a mother fucker."
by Boob Hump January 8, 2006
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a word commonly used among NIGGERS, often pronounced motha fucka.
isnt it about time you gave me my motha fuckin money nigga
by mike hunt December 18, 2004
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A way of describe either destruction of a building, or to blow a crowd away(musical sense).
It's time we blow this mother fucker.

I'm gonna blow the mother fuckers away.
by purplemonkey May 5, 2004
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1)the second female parental unit for urban african americans the first being their moms. the others being theys grams,grandmas.
2)adjective, noun, verb, adverb, and any other method to massacare the english language by the coloreds that can be uttered by the "ignant"
watch any movie with Samuel Jackson or listen to any rap album mother fucker
by jcoa December 6, 2005
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