From Wiktionary, the free dictionary
в- (v-) + а́хуй (áxuj)
ва́хуй • (váxuj) m inan (genitive ва́хуя, nominative plural ва́хуи, genitive plural ва́хуев)
- (vulgar) (slang) A strong feeling of shock ( generally used sarcastically )
Я ва́хуй .- Ja váxuj .
- I am fucking shocked