JBW theory or JBW is short for "Just Be White Theory", and describes the fact that in multiethnic western societies white men are favored in dating. According to this theory, causasian males have a high sex appeal on asian women, thus almost any white man can get a girlfriend in Asia. Some say this also applies to South America and locations in the Western world with high rate of non-white people.
John: "Did you have any luck on Tinder here?"
Dave: "I get no matches here in the West boyo. But I'm going to visit Asia soon, and run JBW-game on those gooks. It can't fail there."
Some believers in the JBW theory have proposed making efforts to look as white as possible (whatever that means) via the whitemaxxing technique.
Ethnicels who are proponents of the JBW theory may refer to themselves as JBWers.