noun
1. or conversation picture also conversation : a painting of a group of figures (as members of a family) shown in their customary indoor or outdoor surroundings
2. : a piece of writing (as a play) that depends for its effect chiefly upon the wit or excellent quality of its dialogue
3. : something that furnishes a subject of conversation (as by reason of its novel, striking, or amusing appearance)
pink elephant beer mugs and Diamond Jim apron waistcoats are conversation pieces — Sylvia Wright
set off … with conversation piece gloves trailing sweeping panels of white satin lined in champagne tulle — Time