The Waifu Probability Potential (WPP) refers to the chances that any particular form of media (mainly visual such as anime or video games) will have someone worthy enough to be your waifu. It is especially useful when trying to describe why you like a particular show or game when you do not in fact actually like the show, but rather just the character(s) in it. At the time of this writing there is no universally accepted standard for the WPP, but the potential itself of the Waifu Probability Potential as a universal metric cannot be overlooked.

The way I find anime, is I go on 4chan or /r/anime_irl and find the sauce to any anime girl that looks like she'd make a great waifu. These girls can then be said to have a high Waifu Probability Potential. They are not yet my waifu, but based on their appearance and my tastes in 2-D women, the probability or potential is then there, thus the WPP.

"What do you mean you don't know why you like Sword Art Online? Everyone knows its a bad anime!"
"Just look at Asuna though! Her WPP is through the roof!"

Waifu Probability Potential by Mozzarellah May 1, 2017