A person who has magical thoughts of his surroundings and perceives himself to be much bigger that he actually is. The word was used in the movie Romy and Michelle's High School Reunion"
He reckoned he was John Wayne and that he would mosey on out of there without anyone standing in his way. Deludenoid!
Sweet energy that comes from watching a livestream or some YouTube clips of an Japanese indie vtuber called Delutaya-chan. It can come especially from hearing the green-haired triangle girl chuckle or giggle.