noun, na-adjective
gibberish; nonsense; incomprehensible talk
Describes speech or writing that is completely unintelligible, like a foreign language or technical jargon one cannot understand. Often used in the phrase ちんぷんかんぷんだ.
彼の説明はちんぷんかんぷんで、何を言っているのかさっぱりわからなかった。
His explanation was complete gibberish; I had no idea what he was talking about.
There's too much jargon; it's all Greek to me.