The act of sticking the rim of a glass bottle into one's rectal cavity proceeded by defecating into it. After the turd has come out of the butt, the user must now turn upside down so the turd that was recently inside them, is now back where it belongs.
I went to a party where I had to do a "Magic Jeffrey". Suffice to say, I didn't shit for five days.
by Michael Veerman June 05, 2011