The action of inserting an umbrella into one's arsehole and opening it to full capacity whilst inside their being.
Karen complained to the manager after her umbrella broke from doing The Mary Poppins too much.
by Fish finger sandwiches October 31, 2019
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1) A well composed/happy person.

2) To do something well/flawlessly. From the measuring tape held by Mary Poppins "Practically Perfect in Every Way."
"How'd you do on test?"
"I Mary Poppins'd it."
by Christoper M Norton January 09, 2006
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the condition someone has of being so delusionally happy you want to punch the person.
Person 1:"I heard you're gettin' freakin' married...are you serious??? you know love doesn't last."
Person 2:"yes it does!!!!...I'm so EXCITED!!!"(said while smiling hard)
Person 2: "that is so freakin' Mary Poppins!!!!
by Dawn Frost July 18, 2005
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When a beautiful, proper, British chick gives a handjob, while singing step by step directions of what she is doing.
While he received a Mary Poppins last night; she was singing “ A hand full of penis helps the jizz come up”!
by TheRealMcNasty May 28, 2018
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Someone who is riding a bike dressed in a suit or dress.
"My car broke down so I have to Mary Poppins it into work today." or "Dude, did you see that Mary Poppins on your way in this morning? "
by segoots14 June 17, 2015
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A rather malicious form of homicide where you stuff a closed umbrella down the victim's throat and open it when it's down there. Rather cruel, but you must give credit for the stylish nature.
Mike shoves an umbrella down Paul's Throat

Mike: Thats for not selling me your Reading Railroad Bitch! You just got a Mary Poppins!

Paul: (Says nothing because he just got Mary Poppins-ed"
by xwasteofdeathx September 25, 2007
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At the completion of a blowjob, the recipient takes a spoonful of sugar to mix in with the "jizz" (ejaculate) in the givers oral cavity (mouth) to help the "medicine" go down; typically done to augment the taste.
Hey Bob, Jamarius has given Caitlin so many Mary Poppins that she has now three cavities.
by Ross Procick February 14, 2009
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