"A knave, a rascal, an eater of broken meats; a base, proud, shallow, beggarly, three-suited, hundred-pound, filthy worsted-stocking knave; a lily-liver'd, action-taking, whoreson, glass-gazing, superserviceable, finical rogue; one-trunk-inheriting slave."
Insulting Oswald to put him in his place, because Oswald has been strutting about the castle indulging his own self-interests, while Kent has always been loyal to Lear.