Nickname for "Dad"/"Father", since he is the fucker of our mother.
Kid: What's up My Mother Fucker?!
Dad: What?! Get your ass to your room!

Kid: I heard My Mother Fucker fucking my mother last night.
Friend: Your Mother Fucker is one lucky bastard. Your mom is such a MILF
by MILF_FUCKER May 30, 2017
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