This is an obviosuly wide meaning word (can be applied to childish or adult stuff, real or imaginary things), but it should generally have a magical sense, I think. Example: She gave a harrypotteresque performance; she cooked a harrypotteresque meal; we spent a harrypotteresque holiday, night, time, etc.
HARRYPOTTERESQUE
Meaning of HARRYPOTTERESQUE in English
Slang English vocab. Английский сленговый словарь. 2012