dilettantism; amateur art; lordly pastime
Refers to a hobby or artistic pursuit done by a wealthy or high-status person without serious training, often with a connotation of being self-indulgent or lacking real skill. The term evokes the image of a feudal lord (殿様) dabbling in arts for amusement.
His paintings show technique, but they never quite escape the realm of dilettantism.
The pottery he started as a hobby gradually became a serious pursuit rather than a lordly pastime.