nit•ty-grit•tyPronunciation: (nit'ē-grit'ē), [key] Slang.
the essential substance or details of a matter; basics; crux: Let's skip the chitchat and get down to the nitty-gritty.
fundamental, detailed, or probing: nitty-gritty questions.
direct and practical: nitty-gritty advice; a nitty-gritty system.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.