nitty-gritty

basic facts

Synonyms: basics, bottom line, bottom line, brass tacks, chief part, chief thing, cold fact, core, essence, essential details, essential part, focus, fundamentals, gist, hard fact, heart, heart of the matter, important matter, kernel, meat, meat and potatoes, name of the game, nuts and bolts, nuts and bolts, quintessence, reality, root, soul, substance, the facts, the facts, the name of the game

to get down to the nitty gritty