This phrase expresses a strong emotional response, indicating a loss of control.

Emotional Intensity

It's a common phrase in the UK but might not be understood elsewhere.

Colloquial British

Used when something bad happens or there's a reason to be upset.

It suggests spending a large amount of money, often unexpectedly or impulsively.

Used informally when discussing financial choices, but not in business talk.

Could imply later regret or recklessness in the spender's behavior.