#16

Ahh yes, “it’s better to be silent and thought a fool than to speak and remove all doubt”. A classic.

You're the reason we have warning labels.

I think I saw this one here previously “You aren’t the biggest idiot in thel world but you better hope they don’t die”.

You could blow in their ear and they would say thanks for the refill.

"At this point, you can only impress me."

Once heard someone say "Well he's about as sharp as a sock full of soup".

These euphemisms telling people they are stupid, will cut straight to the chase.

People from all around the world shared various ways to insult stupid people politely by using both modern ingenuity and old folk proverbs.

In russian we have "intelligent thoughts have always followed him, but he was faster."

In Greece we say "when it was raining brains, you had an umbrella."

My teacher said I was as "quick as a glacier"...

"If you ever had a clever thought, it died alone and afraid."

He needs to carry a plant to make up for the oxygen he's wasting.

Saw two coworkers going about a task in the worst way I could imagine. I said "I believe if there was a harder way to do that you two would find it."

They didn't get it.

One of my all time favorites is "More foam than beer."

"Well pardon me, ma'am but what you don't know could fill a warehouse."

Sharp as a marble, that one

He's so far behind he thinks he's first.

I can explain it again, if you'd like, but I can't understand for you.

"I'm guessing you weren't burdened with an overabundance of schooling."

Unencumbered by the thought process.

You could hide your own Easter eggs.

It's impossible to underestimate you.

If your brains were dynamite there wouldn't be enough to blow your hat off.

His train of thought is still boarding

One of my personal favorites:

"They only got two brain cells and both of them are fighting for third place."

I would agree with you but then we would both be wrong.

Couldn't pour water out of a boot with instructions on the heel.

The wheels spinning, but the hamsters dead.

A village somewhere is missing their idiot.