n. A flat-bottomed, square-ended boat once used in the Philippines as a lighter to ferry goods between ship and shore
The Century Dictionary and Cyclopedia
n. A boat of the Philippines, used chiefly on the river at Manila, almost rectangular in form, very flat and very durable, and much used for conveying cargoes to and from ships.
Word Usage
"The casco is a lumbering hull covered over in the centre with a mat of plaited bamboo, which makes a cave-like cabin and a living room for the owner's family."