adj. In medias piss.
Real citation: "From here our story spins wildly out of control: bodyguards, snotty remarks, alleged weaponry, wanton pee-splash, some poor fool getting smacked several times in the face midpiddle."
(Adrian Ryan, "Celebrity I Saw U," July 20, 2006, The Stranger, http://www.thestranger.com/seattle/Content?oid=44513)
Made-up citation: "When my puppy is in midpiddle and looks up at me, I say 'good potty.' This guy down the street has a more creative proclamation of potty praise: 'Tally ho!'"