A misspelling of the word blasé, or a dialectic representation of it. It means:
apathetic; indifferent; bored;
lacking enthusiasm; unimpressed.
From a phone-texting conversation:
"Yo, let's go hang out with the
gang!"
"Meh...I'm feeling blazay today. Too much hedonistic fun for too
long, man."
"Err...you
mean blasé?"
"Shut up!"