One who deliberately (or inadvertently sometimes) fucks their grandma. Note the difference between this and a "grand" mother fucker.
Joe: Steve, where were you last night?
Steve: Ahh .. umm.. I was out playing with the dog.
Joe: Don't lie, you incestuous grandmother fucker! I have it all on tape!
Steve: WTF?
Steve: Ahh .. umm.. I was out playing with the dog.
Joe: Don't lie, you incestuous grandmother fucker! I have it all on tape!
Steve: WTF?
by african_dude March 25, 2008
Get the grandmother fucker mug.someone who, willfully or against his or her will, engages in sexual intercourse with someone who has grandchildren.
the person with grandchildren doesn't need to be the actual person's grandmother.
the person with grandchildren doesn't need to be the actual person's grandmother.
Rob: Dude, what happened at the bar last night?
Tim: didn't you see? I was talking to that old lady from the back there.
Rob: how old was she,
Tim: i don't know but when I got back to her house her grandchildren were running all over the place so I took her to the basement, put a sock in her mouth and fucked her. After about 10min her grand kids came down and started watching.
Rob: WTF you nasty ass grandmother fucker!
Tim: didn't you see? I was talking to that old lady from the back there.
Rob: how old was she,
Tim: i don't know but when I got back to her house her grandchildren were running all over the place so I took her to the basement, put a sock in her mouth and fucked her. After about 10min her grand kids came down and started watching.
Rob: WTF you nasty ass grandmother fucker!
by Rockman01 July 27, 2010
Get the grandmother fucker mug.by Vulcanus January 17, 2005
Get the grand mother fucker mug.by The Great Dark February 8, 2015
Get the grand motherfucker mug.A respected older motherfucker who has been promoted by excelling as a motherfucker or by fucking one or more grandmothers
by JAKINTEXES July 10, 2011
Get the Grand motherfucker mug.by Greg Pugh August 14, 2003
Get the grandmotherfucker mug.Also known as your grandfather.
Named for mating with his wife to produce children who then become parents of his grandchildren.
Named for mating with his wife to produce children who then become parents of his grandchildren.
Ben: Me and my motherfucker just went to see my grandmotherfucker for Motherfucker's Day (also known as Father's Day).
Gregory: My motherfucker (or my father) is such a charm and treats you with love.
Gregory: My motherfucker (or my father) is such a charm and treats you with love.
by gregben July 6, 2021
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