also: おこごと
noun
Rare term for foolish or nonsensical speech; may be used humorously or in literary contexts.
彼の言うことはまるで痴言だ。
What he says is sheer nonsense.
その古い小説には「痴言」という言葉が出てくる。
The word 痴言 appears in that old novel.
Composed of 痴 (foolish) and 言 (speech). The exact historical derivation is uncertain, but it is a Sino-Japanese compound.