An abecedarian insult
Sir, you are an apogenous, bovaristic, coprolalial, dasypygal, excerebrose, facinorous, gnathonic, hircine, ithyphallic, jumentous, kyphotic, labrose, mephitic, napiform, oligophrenial, papuliferous, quisquilian, rebarbative, saponaceous, thersitical, unguinous, ventripotent, wlatsome, xylocephalous, yirning zoophyte.
Translation: Sir, you are an impotent, conceited, obscene, hairy-buttocked, brainless, wicked, toadying, goatish, indecent, stable-smelling, hunchbacked, thick-lipped, stinking, turnip-shaped, feeble-minded, pimply, trashy, repellent, smarmy, foul-mouthed, greasy, gluttonous, loathsome, wooden-headed, whining, extremely low form of animal life.