A word made up and mainly used by Emu Otori, a fictional character from the mobile game "Project Sekai".
Although she mostly uses the word as a greeting to people, she also often uses it as an adjective, some of her troupe members signaling her that it didn'
t make sense used as such.
She also uses it as a simple sign of her
happiness, like in the songs "Niccori^^ Survey Team", "Positive Dance
Time" and "
Glory Steady
Go!".
The phrase quickly became a meme in the Project Sekai community, and many use it among fellow fans as a greeting.
"Wonderhoy" became
popular because it is said quite a lot in the game, not only by Emu herself but also by the others in Wonderlands×Showtime, by some of her other friends/classmates and by the Vocaloids.
Some people also spell it "wandahoy" or "wondahoy"
