thoroughly; completely; utterly
Emphasizes that something is done to an extreme degree, often with a negative or exhaustive connotation. Similar to さんざん but more emphatic and colloquial.
彼の話はさんざんぱら聞かされた。
I've heard his story thoroughly (more than enough).
その映画はさんざんぱらに批判された。
The movie was utterly criticized.
試験に落ちて、さんざんぱらな気分だ。
I failed the exam and feel miserable.
彼は上司にさんざんぱら怒られた。
He was severely scolded by his boss.