Iwara is a Japanese term, and in the context of adult content, it refers to an adult video or AV (Adult Video) featuring Japanese performers. These videos often showcase various sexual activities and scenarios, ranging from solo masturbation to group sex and BDSM. The term "iwara" can be seen as a shorthand for these types of videos in the Japanese adult industry. They are typically produced and distributed within Japan, and often showcase cultural differences and specific preferences compared to non-Japanese adult content.