It means he's really angry.
It means being ticked off, or very mad.
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 easily angered, or not in control of your emotions.
It means stay with the rest of the group.
to come up with new ideas
It means "shut up" or "be quiet"
It made me laugh very much.
It means to gather up enough courage to do something.
Young blood is used to describe up-and-coming young people.
"To be" is not an idiom - it's a verb.
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 be brave enough to do something challenging