Idiom: an expression having a special meaning which is not clear from the usual meaning of the words in the expression
To go to bat for someone
Definition: to help or support someone (taken from baseball)
EXAMPLE: I like Kenji. When I needed him, he went to bat for me. That is why I got this job
EXAMPLE: If you are in trouble, our company will go to bat for you.
To hit a home run (variation: homer)
Definition: to be very successful at(on) one occassion (taken from baseball)
EXAMPLE: I just hit a home run! I got 100% on my history exam.
To face off against someone (taken from ice hockey)
Definition: to meet someone in a tense situation (usually an important issue is being discussed)
EXAMPLE: Sandy is facing off with her boss again. She wants a raise in pay
EXAMPLE: The union and management are facing off at the meeting this afternoon.
To strike out (taken from baseball)
Definition: to fail at something
EXAMPLE: Dolores struck out when she tried to get her job back. She should not have quit in the first place.
EXAMPLE: After Bob found out that he did not win the lottery he said, “I struck out again.”