Likely referring to the two major Russian cities, Moscow and Saint Petersburg (often shortened to "Peter" or "Piter" in colloquial speech).
While the phrase as a whole is nonsensical, the individual parts suggest a focus on travel, media, or nightlife: moscow peter boil 4 girls avi best
Because this specific string does not refer to a known cultural event, movie, or public figure, it is most likely a remnant of automated web crawling or outdated file-naming conventions from the early era of internet video sharing (indicated by the ".avi" format). Understanding the Keyword Components Likely referring to the two major Russian cities,
An older video file format (.avi) that was dominant in the early 2000s for high-quality video storage. or public figure