Hoog has had a definition for many eons for those with occult knowledge. It is a mantra of expulsion. Used to dispel negative energies. It itself is a very powerful mantra and should be used sparingly as it may bring harm to those whom it is directed towards.
Eg Julian asks in a manner of uncultured bewilderment “What on earth is a Hoog”?
His brothers reply in unison “that is 400g (the size of the steak) you fucktard” explaining to Julian the illiterate mongol spaz master 3000.
Iemand met een psychische aandoening (someone with a mental disorder) die zijn symptomen kan verbergen en/of kan meedoen in de maatschappij (who can conceal his or her symptoms and/or can participate in society) wordt gezien als hoog functionerend (is seen as high functioning).