This structure is used to indicate something 'struck with' or 'hit by' the meaning of the noun.
Long explanation:
The ~ぶった Noun grammar point refers to the usage of a noun followed by ぶった to denote something that has been 'struck with' or 'affected by' the meaning of the noun. A common English translation might take the form of 'Was hit by [noun]'. The structure is most commonly used with the verb '打つ (utsu)' which means 'to hit', but other verbs can also be used.