betel nut, chewed with lime and mustard of various kinds, very popular, sold in markets and from small stands on the streets of Papua New Guinea, and responsible for the red stains of expectorant which colour streets, walls, buildings and roads
kaikai buai to chew betel nut
Tambu long spetim buai.
Spitting betel nut juice is prohibited.
Em i spetim buai long ka bilong mi.
He spat betel nut juice on my car.