[go] through the roof

to become extremely angry, agitated, or upset

The exact origin of the phrase "go through the roof" is unclear, but it is believed to have emerged in the mid-20th century. This idiom is derived from the image of something rising so rapidly and forcefully that it breaks through the roof, symbolizing a significant increase or escalation. It is often associated with emotions, such as anger or frustration, reaching a peak or becoming uncontrollable. It can be applied to emotions, prices, levels of intensity, or any situation where there is a notable surge or rise. When used to describe emotions, it signifies becoming extremely angry, agitated, or upset, often accompanied by an intense outburst.

When he heard the news, he went through the roof and started yelling.
Her boss's criticism made her go through the roof with anger.
He went through the roof when he found out about the betrayal.
Their parents went through the roof when they discovered the broken vase.
I'm afraid she will go through the roof if she doesn't get a promotion.

(especially of prices) to increase suddenly and dramatically

The idiom "go through the roof" likely originates from the imagery of an object or a situation breaking through the ceiling, which symbolizes a sudden and dramatic increase or escalation. When applied to prices, it suggests a significant and unexpected surge in cost. This idiom is commonly used to describe situations where something experiences an abrupt and substantial rise, often in the context of financial or emotional reactions.

After the announcement of the new product, the demand for it went through the roof, causing the company's stock price to soar.
Gasoline prices have gone through the roof in recent weeks, putting a strain on people's budgets.
When the housing market is hot, property values can go through the roof, making it challenging for first-time homebuyers.
The cost of healthcare in this country has gone through the roof, leaving many people struggling to afford necessary medical treatments.
His temper went through the roof when he found out about the unauthorized charges on his credit card.