gabuk1adjRotten (wood); crumbling (wood); turned to dust (as wood eaten by termites).Daa ko ngandãg taꞌ kayu gabuk, maha ko labuꞌ.Don’t climb a rotten tree lest you fall down.2verb intransitiveTo become rotten.Pagabuk na sina tehang nu bong pabiya nu kauwan katingallawan.Your posts will become rotten if you leave them exposed to the rain and sun.