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2 definitions by LEBOWSKI99

Shoving one's fist up a man's ass, and then opening up the hand up. Like a 'Mary Poppins,' but to a man instead of to a woman.
The two gay guys took turns giving each other chimney sweeps.
by LEBOWSKI99 November 22, 2009
Shoving one's fist into a vagina and then opening the hand up, like an umbrella.
Bobby got his girlfriend, Sue, really drunk, and gave her a Mary Poppins.
by LEBOWSKI99 November 22, 2009