This is not a Tagalog word, but it’s starting to appear more frequently in Philippine newspapers.
OrMin is short for Oriental Mindoro, a province of the Philippines located on the island of Mindoro, about 140 kilometres or 87 miles southwest of Manila.
Silangang Mindoro
Eastern Mindoro
The indigenous people of Oriental Mindoro are called the Mangyans in English, Manguianes in Spanish, and Mañguianes in Old Tagalog. They comprise seven distinct tribes.