The Idiom Attic - a collection of hundreds of English idioms, each one explained.
The meaning of "nitty gritty"
" Nitty-gritty "
Meaning:
The important aspects of a situation; the heart of the matter.
Example:
The solicitor spent ages listing the business details of Grandad's will. We were all waiting for him to get to the nitty-gritty when we found out how much money we would inherit.
