The phrase appears in countless media titles, including the song “Doki Doki! Love Mail” from Aya Matsuura, the 2003 short-film Doki-Doki by Chris Eska, as well as video games like Doki Doki Majo Shinpan! and Doki Doki Penguin Land.
“Doki Doki” was first defined on Urban Dictionary on June 26th, 2010.
“Doki Doki” gained widespread recognition in 2017, when on September 22nd, the visual novel video game Doki Doki Literature Club was launched.
- Gamerant.com – Doki Doki Literature Club Memes So Funny You’ll Glitch Out Laughing
- Reddit.com – r/DDLCmemes