Things you CANNOT do

Run like the wind ?

You cannot:

Move heaven and earth (to do something)

One can't revert back!

You can’t have cloth ears,
I would however like to find that elusive pot of gold at the end if the rainbow!
Btw, which side is the end of said rainbow? Knowing me, I’d search at the wrong end ?
Oooo, another one, you’re away with the fairies.

Fall head over heels in love.

Pick someones brains.
Turn blue in the face
Turn the house upside down.
Pull someone to pieces.
Wipe the smile off your face.
Pick a hole in an argument.

You cannot have more faces than the town hall clock
Or
Grow potatoes in your ears (yuck!)

Just to be awkward - you might bark up the wrong tree if you were looking for a lost dog.

Hello all, and thank you all for posting!

However, some things posted can actually be done/achieved!

No points awarded for spotting them but...........?

Could be fun to have a go?

You actually can turn blue in the face..
When my daughter was born, she was blue. She had the cord wrapped around her neck. I have never forgotten that scene.

You cannot:
Eat your heart out
Talk the hind legs off a donkey
Drink like a fish
Sleep like a log

Talk the hind legs off a donkey.

Sparklingsilver28
I've laughed till I cried. Jolly cathartic it was too!

Cherrycezzy Sleeping on a washing line was ‘literally ?’ done in the old ‘doss-houses’, I believe. Homeless people were given a safe place to sleep, and just leaned over a line strung across the room. It sounds impossible, but Google it.

You can keep your shoulder to the wheel, and,
you can keep your nose to the grindstone, but I would strongly recommend that you didn't do either.

You cannot cough your lungs up.

If you expand on this concept, the thread will run and run. Here's what I mean:

. A bank is a place that will lend you money, if you can prove that you don’t need it.

A good mood like is like a balloon, one prick is all it takes to ruin it.

A jellyfish has existed as a species for 500 million years, surviving just fine without a brain. That gives hope to quite a few people.

Mountain out of a molehill, needle in a hay stack, and that 'might cause weight loss' , in all the medicine leaflets, even paracetamol these days, it's a lie, an impossibility

Yes GreenGran, Phoenix reminded me of that. It is a fact that I have previously learnt about but had forgotten. I don't need to Google it thanks. As Phoenix has said up thread some other things that others have posted can also be done. There was also a post before mine that has its roots in fact too and can and has been done but just my post is personally pointed to ?

Squeeze the living daylights out of

You are right Marydoll you can go blue in the face, lips especially go blue if the brain is starved of oxygen. I'm sure you'll never forget that, it must have been horrible.

Be literally petrified

How about

" Gaun aff yer heid"
translation

Losing your marbles

Getting into a right Stushie

You cannot:

Be a little monkey (nor can your grandchildren although it often appears that they’re trying hard to be.)

Nor can you:

Cross a bridge before you get to it

Laugh yourself into stitches.
I was tearing my hair out!
I bent over backwards.

I could eat a scabby donkey and chase the rider!

You can not be epileptic.

When I was a child I could bend over backwards, as I could do "the crab" from a standing position instead of by pushing myself up from the floor. Most acrobats and dancers can.

My sister lay in her pram sucking her toes and could still get them into her mouth when she was seven.