nitty-gritty

Noun

nit=ty-grit=ty

WORDNET DICTIONARY

nitty-gritty(n = noun.cognition) center, centre, core, essence, gist, heart, heart and soul, inwardness, kernel, marrow, meat, nub, pith, substance, sum - the choicest or most essential or most vital part of some idea or experience; "the gist of the prosecutor's argument"; "the heart and soul of the Republican Party"; "the nub of the story"

is a kind of cognitive content, content, mental object

has particulars: bare bones, hypostasis, haecceity, quiddity, quintessence, stuff

nitty-gritty, n. sl. the realities or practical details of a matter.

Etymology

20th c.: orig. uncert.

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