Implementing Agile as a project management tool. Specifically, the difficult and doubtful successful outcome to implementing an overly ambitious and unnecessarily complicated management plan.
The attempt to boostrap Agile in the middle of development is a realturdsandwich.
Person 1: I voted for the turdsandwich in the last election.
Person 2: Why would you vote for the Turd Sandwich?
Person 1: Because They're not a giant douche.
From the TV series of South Park, Stan is made to choose between a Turd Sandwich or a Giant Dooche for the school mascot, but personally, VOTE FOR TURD SANDWICH! VOTE FOR TURD SANDWICH! VOTE FOR TURD SANDWICH! VOTE FOR TURD SANDWICH!
Stan: So you want me to choose between a Giant Dooche or a Turd Sandwich...?
Cartman: VOTE FOR GIANT DOOCHE
Kyle: VOTE FOR TURD SANDWICH
Oh man, this radio station blows! They play the intro of every good song then they proceed to play some shitty generic rock no-one would've tuned in for. This is Radio Turd Sandwich.