a chip on the shoulder: (A perceived grievance or sense of inferiority.) "He was a man with a chip on his shoulder. Everyone seemed in a conspiracy to slight or injure him."
to sound the alarm (If you raise the alarm or sound the alarm, you warn people of danger. ) His family raised the alarm when he had not come home by 9pm.
to beat the drum (
: to proclaim as meritorious or significant
: publicize vigorously )
a raw deal (an instance of unfair or bad treatment) Mary got a raw deal on her traffic ticket. She was innocent, but she had to pay a big fine.
a tall order (a request that is difficult to fulfill.)That's a tall order. Do you think anyone can do it? Well, it's a tall order, but I'll do it.
I've collected these idioms from Google. You can get most of the idioms from Google easily :-)