know the ins and outs (verb) know the ropes: understand the particulars of a situation
Sinonime: besotted, buzzed, crapulent, drunk as a skunk, drunken, faced*, half-seas over, in one's cups, inebriated, intoxicated, loaded, pickled, plastered, polluted, shit-faced, sloshed, smashed, soused, tanked, three sheets to the wind, tipsy, trashed, wasted*