a person who moves from a developed country to an developing country with the intention of enjoying an easier way of life, often at the expense of the locals. For example, many English teachers in East Asia like to convince others that they are serving or sacrificing for the populations in which they live and work for a salary far above local wages, but in reality, they are taking advantage of the people living in the host country.
An opportunity cock is the man who is not chosen by a girl when she has to make a choice between 2 guys. Deriving from the term opportunity cost, meaning the item not bought when choosing between 2, the opportunity cock is basically the man the girl leaves behind at the bar when she sees a much more attractive rich man.
John: “Can’t believe Ann chose Andrew over me. What’s wrong with me?”