Definitions by The Original Aviator

The upside down Mary Poppins 

The act having an umbrella inserted into your anus (handle first) then your partner opens it. Followed by the act of running around creating enough draft to pull the umbrella out.

Man last night was great until Sheila tried giving me the upside down Mary Poppins.

The upside down Mary Poppins by The Original Aviator January 26, 2022