Final answer:
It is true that 'something' in the definition of cultural appropriation can refer to ideas, as this can include material objects, non-material traditions, and ideas from one culture used inappropriately by another.
Step-by-step explanation:
Based on the lecture regarding Raiders of the Lost Ark and the provided definition of cultural appropriation, it is true that the word "something" in the definition can refer to ideas. Cultural appropriation involves claiming or using elements of another culture in an inappropriate way, and these elements can include material objects, non-material traditions, and ideas. Examples of cultural appropriation extend across various domains such as fashion, where a motive from one culture is used in another for profit, or music, where the style or presentation of one culture may be used by artists from another culture. This practice is tied to issues of social equity and can be harmful when it infringes on the intellectual property of the originating culture.