See: booyah! for explanation of the term (although I must admit to only using it in context number 3)
Slightly addicted to above word, and it has been sneaking into my everyday work-life.
I've been using it in emails.... when speaking to my boss.... 
it really is beginning to take over my life...

is this wrong? is it bad?
Should I instead be obsessed with some other term of booyah?