It means "to be shocked or upset," often after a sudden and/or shocking event with varying degrees of severity. "Up" could also be omitted, but it achieves the same effect. For example:
She was shaken when she noticed she was in the wrong lane after she sent her text message.
He was shaken up when he found out that his brother tried to commit suicide.
The idiomatic expression "all shook up" carries the basic meaning of "being upset" or "being agitated". The agitation involved in being "all shook up" can be negative or positive, depending on the context involved.
The meaning of the idiom suck it up is to stand up or stand tall amidst all troubles. It can also be reversed as "compose yourself", "bear your troubles", and "go on".
It means stay with the rest of the group.
It means "shut up" or "be quiet"
It means he's really angry.
to come up with new ideas
It made me laugh very much.
It means to gather up enough courage to do something.
"To be" is not an idiom - it's a verb.
To be brave enough to do something challenging
The best way to find out the meaning of an idiom is to look it up in a reputable dictionary or idiom database. You can also search online for the idiom along with the word “meaning” to find explanations and examples of its usage. Additionally, asking a native speaker or language teacher for clarification can help you understand the idiom better.
"To kick up your heels!" is to celebrate. Get up and do something.