You are a fiend and a coward, and you have bad breath. You are degenerate, noxious and depraved. I feel debased just for knowing you exist. I despise everything about you. You are a bloody nardless newbie twit protohominid chromosomally aberrant caricature of a coprophagic cloacal parasitic pond scum and I wish you would go away.
You're a putrescence mass, a walking vomit. You are a spineless little worm deserving nothing but the profoundest contempt. You are a jerk, a cad, a weasel. Your life is a monument to stupidity. You are a stench, a revulsion, a big suck on a sour lemon.
You are a bleating fool, a curdled staggering mutant dwarf smeared richly with the effluvia and offal accompanying your alleged birth into this world. An insensate, blinking calf, meaningful to nobody, abandoned by the puke-drooling, giggling beasts who sired you and then killed themselves in recognition of what they had done.
I will never get over the embarrassment of belonging to the same species as you. You are a monster, an ogre, a malformity. I barf at the very thought of you. You have all the appeal of a paper cut. Lepers avoid you. You are vile, worthless, less than nothing. You are a weed, a fungus, the dregs of this earth. And did I mention you smell?
I was going to post a comment but I see you've already said it all. Well done! :)