Julz’s answer to “I'm looking to read my first Ken Follett book and I'm torn between Fall of Giants and Pillars of th…” > Likes and Comments

Sorry. Couldn't resist a correction of your idiom
The term is knock the socks off. Pillars of the Earth knocks the socks off Fall of Giants
https://idioms.thefreedictionary.com/...

Ha ha. Nice one, but different idiom. Might be a Kiwi thing.