angry
got angry
"Your head is going to explode" IS an idiom. It means you have too much to think about.
not easily be angry or upset
Stop pushing your buttons is an idiom meaning stop making a person angry.
It means he's really angry.
Meaning you snapped and got angry.
It means to be very angry.
to go all out to get someone angry.
It means she got really upset or angry, and lost her temper.
to get angry
The expression "hit the roof" is idiomatic because you cannot tell from its constituent parts what it means. Here is an example sentence: "My father is going to hit the roof when he sees that scratch I got on his car!"