Japanese translation?

Question

What does this say? Is it even Japanese? 

Answer 1

Looks like a stylized font of katakana (Japanese).  Maybe a Japanese national can make sense of it.  Seems to say bisodoyu plus an exclamation point.  But I'm about as good at reading it as a non-English person would be at reading an Olde English font, and will yield to a better answer.

Answer 2

Although some parts look like Japanese katakana, other parts don't look like any of the three Japanese scripts.  I don't think it's Japanese. 

Source(s): intermediate Japanese

Answer 3

It says "go f­uck yourself"