The phrasal verb 'blow up at' is predominantly used in informal contexts to describe a sudden expression of anger or frustration directed towards someone. It features more commonly in spoken English than written, capturing moments of emotional outburst that are often spontaneous and unrestrained. In terms of usage patterns, it typically follows a personal subject as in 'He blew up at his friend' or 'She blew up at the meeting,' indicating the context where the outburst occurs. It conveys a sense of volatility and is particularly common in contexts involving personal relationships or stressful situations. "Blow up at" implies both a loss of temper and possibly a level of surprise or unexpectedness in the reaction of the person doing the "blowing up." It is less appropriate for formal writing or speech, where more controlled or measured language would be preferred.
B2
UpperIntermediate
1. To lose one's temper suddenly and express anger at someone.
She blew up at her coworker for not finishing the report on time.
After hearing the bad news, he blew up at everyone in the room.