Dipthong

I was working on a report the other day and I was describing errors that a student made on a reading test, when I suddenly decided that saying the word "dipthong" aloud sounded vaguely naughty. Before I knew it, I was having a little gigglefest at my desk. It was a nice little break, even if I did feel a little like either Beavis or Butthead, which ever one of those did all the giggling.