What is another word for knew backwards and forwards?
Pronunciation: [njˈuː bˈakwədz and fˈɔːwədz] (IPA) 
"Knew backwards and forwards" is an idiomatic expression used to describe someone who has a thorough understanding or knowledge of a topic. Alternative phrases that could be used to convey a similar meaning include "know inside out," "know like the back of one's hand," or "be an expert on." Other possible synonyms for this phrase include "know like a book," "know like the palm of one's hand," or "know like the alphabet." Each of these phrases emphasizes the depth and accuracy of one's knowledge on a particular subject. These synonyms can be used interchangeably with "knew backwards and forwards" to express a comprehensive understanding of a topic.
