What term refers to the joking reference related to President Roosevelt’s summary of the Supreme Court?

The term that refers to the joking reference related to President Roosevelt’s summary of the Supreme Court is indeed closely associated with the group known as Disney's "Nine Old Men." This phrase originated when President Franklin D. Roosevelt used the term "Nine Old Men" to describe the members of the Supreme Court, reflecting his frustration with their decisions that often contradicted his New Deal policies.

In the context of animation, Disney's Nine Old Men were a legendary group of animators who worked at Disney and played a significant role in the studio's success during its early years. These individuals not only shaped the style and techniques of animated film but also contributed to the quality of storytelling in animation. Consequently, their name became symbolic in both the animation industry and popular culture, drawing a connection to Roosevelt's quip and giving it a light-hearted spin.

The other terms provided, while relevant to animation history, do not specifically connect to Roosevelt’s commentary on the Supreme Court and lack the contextual humor that the correct choice embodies.