It can be done, but would be a really stupid idea. Fog lights are designed to cast a low and wide pattern, hoping to illuminate the road at the 1-3 foot level where there's often no fog. Using high beams in fog is the worst possible thing that you can do, for your own safety and that of those around you. Illuminating the fog right in front of you makes the for opaque to oncoming traffic, and it blinds oncoming drivers--lose/lose.
If your intent is to be a rude, obnoxious jerk and only want to blind other motorists, I have a fist with your name on it.
If you are impotent and/or have abnormally small genitalia, see a physician for help; don't try to compensate by shining bright lights into innocent peoples' eyes. Trust me, we do NOT give respect for that, and it's a dandy way to lose teeth...or your life or freedom if you cause a wreck as a result of illegal and hazardous lighting.