Bamboozled (2000)

Sleep'N Eat: Years ago, I married a widow who had a grown up daughter. My daddy visited us often, fell in love, and married her. Thusly, he became my son-in-law and my step-daughter became my mother because she was my father's wife. That's right. After that, my father's wife gave birth to a son who became my brother and my grandchild, because he was the son of my daughter. I ain't jiving! Now, accordingly, my wife was my grandmother because she was my mother's mother. Mantan, I was my wife's husband and grandchild at one and the same time. And lo and behold, as the husband of the person's grandmother is a grandfather, I became my goddamn own grandfather.

Bishop73