On paper that might sound like a good idea but in the body it isn't going to work. It isn't like globs of butter are going to travel through your bloodstream running into THC metabolites and attracting them. The fact that THc and THC metabolites are fat soluble just leads to the fact that they are stored in adipose (fat) tissue and not in areas of high water concentration. Without going into more detail, it isn't going to work.