The town's name is derived from the Waray-Waray word puro meaning "island". This how Camotes Island is called by Warays and Leyteños. Before the first municipality to be established in Camotes, puro meant the name of all the islands.
Porohanon is distinguished by the way the locals substitute /j/ sounds with /ʒ/, for instance Cebuano maayong buntag ("good morning") vocalised as maazong buntag in Porohanon. (Possibly occasions too a handover from the yeísmo phenomenon in Spanish.) Other dialectical variations include the Porohanon ara dira instead of the standard Cebuano na-a diha.
(Administratively independent from the province but grouped under Cebu by the Philippine Statistics Authority. Mandaue is grouped under the 6th legislative district of Cebu but still independent from the province.)