An example would be when someone is complaining about something minor that has occurred. You might say "You can't always have a bed of roses, you know" to remind them that life's not always going to be grand.
A white elephant means 'something useless and expensive to keep'
The correct idiomatic expression is "toe the line", not "a toe the line". It means to follow the rules or policies. Here is a sample sentence: Jim's refusal to toe the line was a source of friction between him and his superiors.
Meaning "to happen" or "to take place," the idiomatic expression "come about" can be used diversely in contemporary English. One proper use is modeled as follows: "Several analysts concluded that an economic boom was going to come about very soon, but their positive word went mostly unheard."
The conversation was rather droll; she had the personality of a wet blanket.We were partying like rock stars until my Dad came home, what a wet blanket.
the monkey at the zoo had a loud expression.
This is not an idiom - it means exactly what it says. You will use any means to achieve your goal.
It's just an expression. Your expression of sorrow sounds somewhat less that sincere.
by yelling freedom
You can look for expressive words in the sentence surrounding the idiom.
The expression 'peter out' can mean something becoming less and less until there is no more; or for running out of energy and/or strength. Similar expressions for the second use are 'running out of steam' or 'out of steam'.
The air chilled to the bone.
Santa's expression was stern when he found out that the Grinch had stolen Christmas in Who-ville.