A really big and offensive pile of shit, named after the song "Agadoo" by shitty 1980's Party-Pop band Black Lace, which was a really big and offensive pile of shit.
You could go to YouTube to see the video, but be warned - IT'S A REALLY BIG AND OFFENSIVE PILE OF SHIT!
The fucking 'BirdieSong'!? It's almost as bad as 'Agadoo'.