Putting it all together, "greyhound2020720phdriphindidubdualaudio exclusive" could refer to an exclusive, dual-audio (potentially in Hindi and another language) version of a movie, TV show, or another form of media titled or related to "Greyhound," made available on July 20, 2020. Given that "Greyhound" is also the name of a World War II film directed by Steven Spielberg, released in 2020, it's plausible that this identifier refers to an exclusive version of that film with specific audio characteristics.
But his foster mom, Sarah (audio exclusive) , disagrees.
The film highlights a crucial but often overlooked theater of WWII: the "Black Pit." This was the mid-Atlantic gap where Allied convoys were out of range of air cover, leaving them vulnerable to German U-boat "wolf packs." By narrowing the scope to this window of time, the movie emphasizes the isolation and constant peril faced by the Merchant Marine and Navy escorts.
: This might refer to a language or a type of dubbing, with "Hindi" being a common reference to the widely spoken language in India. "Dub" could relate to dubbed content, where the original audio is replaced with a new version.