English Idioms About “Parts of the body”
Idiom: Rack one’s brain
Meaning: (Also rack one’s brains) to think very hard about something.
Example: I’ve racked my brain all day long, but I still can’t remember where I put the keys.

English Idioms About “Food”
Idiom: Into a jam
Meaning: (Also in a jam) in a difficult situation.
Example: He found himself in a jam when he was caught cheating.

English Idioms About “Home”
Idiom: Wake up on the wrong side of bed
Meaning: To feel grumpy, irritable; to be easily annoyed.
Example: She must have woken up on the wrong side of the bed this morning. She didn’t stop shouting all day long.

English Idioms About “General”
Idiom: Fall through the cracks
Meaning: To be missed; to escape the necessary notice or attention
Example: Complete every item, and make sure nothing falls through the cracks.

English Idioms About “Men and women”
Idiom: Man cannot live by bread alone
Meaning: Used to mean that things like poetry, art, music, etc are necassary for people just as food.
Example: People need to read some poetry! Man cannot live by bread alone.