This refers to the act of revealing intimate details about a relationship or sexual encounter. It’s a well-worn trope in media, from tabloid journalism to pop music.
The other search results for "Blue Coyote" point to completely unrelated entities, such as an LGBT-focused novel by Simon & Schuster, a now-closed strip club in Leeds, and even Christopher Moore's novel Coyote Blue . This highlights the obscurity of the specific adult film you're looking for; it existed in a niche that has since been largely forgotten.
Likely the name of a specific series, website, or brand that specialized in adult photography or film during that era.