An ingenious spin on the ever so versatile term "fuck." Derived from the bowels of a US Navy
ship, the term literally means, well, exactly what is says: "motherless fuck." Motherless, meaning without a womb, and fuck... well, there're thousands of possibilities. A comparable term, Mother
Fucker, can be used alternately when "motherless fuck" does not
fit the context in a desirable fashion (though, I don't foresee many situations in which "motherless fuck" would not
work...)
Antonym: Son of a Bitch