US /blʌf aʊt/
・UK /blʌf aʊt/
So I was on a plane from DC to London last night, and the air hostess— she was wonderful, her name was Jeanette— she said to me, she was like, "Jay, I really want to start a YouTube channel, but, you know, you just got to bluff out what your friends are going to say, right?" And she was just worried about it.