1 definition by Rin senpai

People who are so obsessed with a virtual character that they would commit to love them over someone in real life
me: Hatsune Miku has won my heart.
Girl: you are such a Waifuist, Baka.

but. D-DONT GET THE WRONG IDEA, OK.
me: thats why the internet has a subreddit called waifuism
by Rin senpai September 03, 2018
Get a waifuism mug for your friend Sarah.