Why do you think it's unacceptable? "Marketing blitz" and "press blitz", for example, are in common use. OED (which defines it as "a sudden, energetic, and conc

Why do you think it's unacceptable? "Marketing blitz" and "press blitz", for example, are in common use. OED (which defines it as "a sudden, energetic, and concerted effort, typically on a specific task") has more examples: https://en.oxforddictionaries.com/definition/blitz https://en.oxforddictionaries.com/definition/blitz.