JBW theory or JBW is short for "Just Be White Theory", and describes the fact that any white man can get a girlfriend in the Phillipines or Thailand (or other brown Asian countries).
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."