the nitty-gritty

US /ðə ˈnɪt.i ˈɡrɪt.i/
UK /ðə ˈnɪt.i ˈɡrɪt.i/
"the nitty-gritty" picture
1.

perkara penting, butiran praktikal, inti pati

the most important aspects or practical details of a subject or situation

:
Let's get down to the nitty-gritty of the project.
Mari kita bincangkan perkara penting projek ini.
He explained the nitty-gritty of how the machine works.
Dia menjelaskan perkara penting tentang cara mesin itu berfungsi.