To reach a very high level or become very angry.
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To increase dramatically, or to suddenly become extremely angry.
When prices or numbers go through the roof, they rise to a very high level very quickly.
When a person goes through the roof, they become furious.
"Hit the Roof"
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Primarily about a person's anger, not dramatic increases in figures
"Sky-high"
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Describing something already at a very high level, not the act of rising
"Go Through the Roof"
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Rising dramatically in amount, or reacting with sudden intense anger