Bob is so stupid he doesn’t know enough to come in out of the rain.You can't expect very much from somebody who doesn't know enough to come in out of the rain.

Old John—he don't know from nothing.What do you expect from somebody who don't know from nothing?

I wouldn't do anything like that! Do you take me for an idiot?I don't take you for a fool. I think you're very clever.

You are the most airheaded twit I have ever met!That was an airheaded idea if I ever heard one.

I've never heard such a birdbrain idea in my life.Look, you birdbrained idiot, you are dead wrong!

I don't know why he's so dull. He's seems brain-dead half the time.I think that half my students are brain-dead.

What a clucky dame!The plan you submitted to this office was rejected by the policy committee. They noted that it was the cluckiest idea they had ever seen.

She is so dense. Totally clueless.I have never seen anyone so totally clueless. What a dunce.

I just shake my head in wonder at the cluelessness of my fellow humans.This place is just infested with juvenile cluelessness!

What a cornball idea!Ken is such a cornball hick!

I've heard enough of your crackbrained schemes.One more crackbrained idea and you're fired.

Beavis seems dead from the neck up.She acts like she is dead from the neck up.

What a dopey guy!That was a dopey thing to do.

What a dumbski jerk!It is not a dumbski idea!

You can be such a fathead!Paul, you are being a perfect fathead.

Now, that is really a fatheaded idea.It's not fatheaded!Let's not come up with a fatheaded plan. This one has to make sense.

That is really a flatheaded idea, you know?Martin seems flatheaded, but he's quite brilliant.

That was really a klutzy thing to do.You are so klutzy!Whose klutzy idea was this?

No more of your lamebrain ideas!My last scheme looked lamebrained at first, but it worked, didn't it?

Now here's something from the lardhead department.No more of those lardhead ideas!

That was a McFly thing to do.Wayne is so McFly!

Of all the meatheaded ideas. This one takes the cake!How meatheaded!When someone conducts a meatheaded operation like this, we tend to lose faith in the whole system.

Tom is sort of stupid acting. You know—nothing upstairs.I know what's wrong with you. Nothing upstairs.

Tom don't know from nothing. He is really dense.Don't pay any attention to her. She don't know from nothing.

What a nutty idea!That's nutty!Mary is a real nutty girl, but she is my best friend.

Joyce has done some stupid things. Sometimes I think she is one brick shy of a load.Ted is one brick shy of a load. He can't seem to do what he is told without messing up.

Old Ted is so out to lunch these days. Seems to be losing his mind.Don't pay any attention to my uncle. He's out to lunch.

I feel sort of punchdrunk after a roller-coaster ride.Who is that punchy jerk?I feel punchy when I drink too much coffee.

The guy's soft in the head. He just can't think straight.She seems a little soft, but she's really bright.

George is just soft in the head. He'll never get away with his little plan.You're soft in the head if you think I'll go along with that.

Say something. Don't just stand there with your bare face hanging out.She just stood there with her bare face hanging out while they took away everything she owned.

There's lots of goodwill in that head, but there's nobody home.You twit! There's nobody home—that's for sure.

She's sort of thick, but she means well.Why are you so thick about money?

He's so thickheaded he can play football without a helmet.What thickheaded dolt put scallops in the scalloped potatoes?

I would never say she was dense. Just three bricks shy of a load.Why do you act like you're three bricks shy of a load?

Everybody was totally clueless as to what to do.Sorry, I'm totally clueless as to what to do.

Tom is totally wet. What a jerk.Wayne is wet and so's his buddy.

Ask that yo-yo jerk to move along.That is the world's yoyoest joke!