Your really not so much of a has-been, but more of a definite won't be.
I Refuse To Have A Battle Of Wits With An Unarmed Person
I'm really easy to get along with once you learn to worship me.
When you open your mouth, it seems that its only to change feet.
You'd be out of your depth in a parking lot puddle.
And your crybaby whiny-assed opinion would be...?
You have set low personal standards and consistently fail to achieve them.
How can I miss you if you won't go away?
I'm not being rude, you're just insignificant.
The beatings will continue until morale improves.
Your depriving a village somewhere of an idiot.
How many times do I have to flush before you go away?
You should go far, and the sooner you start, the better.
You've got a full 6-pack, but lack the plastic thing to hold it all together.
A gross ignoramus == 144 times worse than an ordinary ignoramus.
Your ridiculous little opinion has been noted.
I tried to see things from your point of view, but I can't get my head that far up my ass.
The proctologist called....they found your head! Congrats!
You're about as bright as Alaska in December.
Certainly takes you a long time to make your pointless.
I would like to go hunting with you sometime.
That user has been working with glue too much.
If ignorance is bliss, you must be orgasmic.
Don't let your mind wander, it's too little to be let out alone.
I can see your point, but I still think you're full of it.
A closed mouth gathers no feet.
If brains were taxed, you'd get a rebate.
I'd explain it to you, but your brain would explode.
Write all complaints legibly in this space -> []
Am I getting smart with you? How would you know?
I find it incredibly amazing that you can be this stupid and still be ALLOWED TO LIVE.
Don't worry, If I bite your head off.. I will spit it out later...
Was left on the Tilt-A-Whirl a bit too long as a baby.
If I wanted to hear from a asshole, I would Fart.
You have a knack for making strangers immediately.
Do they ever shut up on your planet? 
Everyone is entitled to be stupid but you're abusing the privilege.
How about never? Is never good for you?
You bring a lot of joy whenever you leave the channel.
You! Off my planet!
If I want your opinion, I'll ask you to fill out the forms.
Earth is full.  Go home.
The fact that no one understands you doesn't mean you're an artist.
You're slower than a herd of turtles stampeding through chunky peanut butter.
You! Out Of The Gene Pool!
When your I.Q. reaches 50, you can come back.
You've got a photographic memory but with the lens cover glued on.
A prime candidate for natural de-selection.
Donated your brain to science before your done using it?
Gates are down, the lights are flashing, but the train isn't coming.
You've got two brains: one is lost, the other is out looking for it.
If I give you a penny for your thoughts, I'd get change.
I would follow you anywhere, but only out of morbid curiosity.
Runtime Error 6D at 417A:32CF: Incompetent User.
That's fine. I can accept you aren't as intelligent as I am.
I'm already visualizing the duct tape over your mouth.
If I stand close enough to you, I can hear the ocean.
It's hard to believe that you beat out the other million sperm.
You are validating my inherent mistrust of strangers.
I don't have an attitude problem. You have a perception problem.
I don't know what your problem is, but I'll bet it's hard to pronounce.
You're slower than a herd of turtles stampeding through peanut butter.
I like you. You remind me of when I was young and stupid.
Ok, so you don't like my attitude. That's your problem, deal with it.. 
I'm Ok. You're a shithead.
Are you still talking?
I already have an asshole, I don't need you!
One neuron short of a synapse.
Some drink from the fountain of knowledge; you only gargled.
The wheel is turning, but the hamster is dead.
Listen, little man, If I wanted to hear your opinion, I'd GIVE you one, then I'd come over there and beat it out of you!!!
I'll try being nicer if you'll try being smarter.
Stop pissing in the gene pool.
I see you've set aside this special time to humiliate yourself in public.
You're bound to marry well - everyone is above you.
I'm forming an attachment for you - it fits right over your mouth.
Keep talking - you'll think of something to say.
If there's nothing to say, I'm sure you'll say it.
You're making a fool of yourself, and I've never seen better craftmanship.