like a boss - Dictionary.com
https://www.dictionary.com/e/slang/like-a-bossThe word boss, borrowed from the Dutch, has been with American English language since the mid-1600s.Boss has long meant, and continues to mean, a “person in charge,” especially used, of course, in professional contexts.Boss has also long been a slang term for “excellent,” with evidence reaching back to the 1880s.Boss took off, though, as a youth slang term for …
254 Synonyms & Antonyms of BOSS - Merriam-Webster
https://www.merriam-webster.com/thesaurus/bossSynonyms for BOSS: boss man, captain, chief, foreman, head, headman, helmsman, honcho; Antonyms for BOSS: atrocious, awful, execrable, lousy, pathetic, poor, rotten ...
Urban Dictionary: boss
www.urbandictionary.com › defineDec 15, 2002 · Incrediably Awesome; miraculous; great. Disingenuous form of address used by insolent little twats, which although ostensibly deferential, actually implies that they don't actually have any respect for you at all.