How to pronounce “bung”(noun) in English

I couldn't see anything. So I took off my glasses and there was like foam kind of geysering out. It was calming down a little, but geyseringout of the bung and cascading down the side of the barrel.So I got down on my knees and -- it was the first thing I could think of doing -- and just started like sucking the foam off the side of the barrel.