Sei tu che hai fatto tutto questo lungo discorso, mica io. Another word, that is Italian and not jargon is 'tiritera', its meaning is: long speech with many repetitions on the same subject. The word is usually in the context of a reproach. Example: - uno dei nostri maestri (teacher in grammar school) ci fa delle lunghe tiritere se buttiamo qualcosa per terra senza raccogliere, ma noi adesso glie lo facciamo apposta, per vedere se smette di rimproverarci.

''pippone gigante'' is a way to speech figured, it serves for to express that a person is very bored about long discourse spoken by other person. It's a situation when a guy speak for more time without interest for other people, but made a discussion that likes only itself. So, other person that listen for more time these words is boring because of ''pippone gigante''.

"pippone" means long boring speech, it is used in some italian dialects

This word is not dialect in any way, it is jargon and its original meaning (pippa) is related to man's masturbation.