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!"
To hit the roof means to become very angry. The image is of you being so angry that you jump up and down and your head hits the ceiling or roof.
Idioms can't be angry, but this idiom means that someone is angry.
I'm about to explode! Flew off the handle, blew up, hit the ceiling or roof
when someone got angry, the would raise their fists in anger and end up hitting the ceiling No one knows for certain when this idiom was first used, but it can either mean hitting the roof with your fists, or being so angry that you jump up and your head hits the roof. The other phrase often heard is "go through the roof."
(The idiom "hit the roof" suggests that someone will be very angered or enraged, figuratively mad enough to leap into the air. Also go through the roof, hit the ceiling)"Dad is going to hit the roof when he sees the room service charges.""Bob hit the roof when he discovered that Bob had once again consumed all of the beer."
idiom 1: out of the blue meaning: happening without warning sentence: After not hearing from him for years, I received a letter out of the blue. idiom 2: hit the roof meaning: got extremely angry sentence: When Dad found out she crashed the car, he hit the roof. idiom 3: heart of gold meaning: someone is a kind, honest, and good sentence: Mr. Peters is a generous person with a heart of gold. idiom 4: in hot water meaning: in trouble sentence: If the assignment isn't completed you'll be in hot water with your teacher. idiom 5: at the top of ones lungs meaning: very loudly sentence: When Jenna finally walked in, we all yelled, "Surprise!" at the top of our lungs.
"Hit the ceiling" means to lose your temper and really get angry. The image is of a person getting so angry that when they jump up and down, their head hits the ceiling. You would use this idiom in a case where something really bad has happened, and you anticipate that someone will become furious as soon as they find out. When Dad finds out that I wrecked his car, he is going to hit the ceiling!
angry
got angry
"Your head is going to explode" IS an idiom. It means you have too much to think about.
The man was a gargoyle, his angry face looming down from the roof. The man was a gargoyle, his angry face looming down from the roof. The man was a gargoyle, his angry face looming down from the roof.
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.