In bad shape : A person who is in bad shape is in poor physical condition.
I really am in bad shape. I must do more exercise.
Blind as a bat : Someone whose vision is very poor, or who is unable to see anything, is (as) blind as a bat.
Without his glasses, the old man is as blind as a bat.
Bag of bones : To say that someone is a bag of bones means that they are extremely thin.
When he came home from the war he was a bag of bones.
Off colour : If you are off colour, you look or feel ill.
What's the matter with Tom? He looks a bit off colour today.
Back on your feet : If you are back on your feet, after an illness or an accident, you are physically healthy again.
My grandmother had a bad 'flu but she's back on her feet again.
Full of beans : A person who is full of beans is lively, active and healthy.
He may be getting old but he's still full of beans.
Dogs are barking : When a person says that their dogs are barking they mean that their feet are hurting.
I've been shopping all day. My dogs are barking!
I've been shopping all day. My dogs are barking!
Kick the bucket : To kick the bucket is a lighthearted way of talking about death.
He will inherit when his grandfather kicks the bucket.
He will inherit when his grandfather kicks the bucket.
Cast iron stomach : If you can eat all sorts of food and drink what you like, without any indigestion, discomfort or bad effects, it is said that you have a cast-iron stomach.
I don't know how you can eat that spicy food. You must have a cast-iron stomach.
I don't know how you can eat that spicy food. You must have a cast-iron stomach.
Credit : http://www.learn-english-today.com/