1
A super fancy way to say something is awesome, but only when it's about Gackt. Like if he does a backflip in a pool of glitter and farts.
Gackt just sang a song in a bathrobe and I'm gacktacular.
This concert was so good, I'm literally gacktacular.
I just saw Gackt eat a whole cake in one bite. Gacktacular.