1 definition by neon.kai

August 31

Hatsune Miku's birthday/release date. Hatsune Miku is a synthetic vocal program that can be used to make songs.

Many weebs celebrate her birthday, and hardcore weebs will celebrate it irl.

"Are you free August 31?"
"No, sorry. I have to make a birthday cake for my electronic waifu Miku."

by neon.kai October 16, 2019