Boiling

An adjective used to describe something that used to be seen as mediocre or even bad, but now slowing gaining your favor or popularity.

Person A: Hey girlie, what are your thoughts on Hatsune Miku?
Person B: Well, at first I was neutral and didn’t see the hype, but damn! She’s boiling for me. I love her.
Person A: Same, I love Hatsune Miku!