I first heard this a few weeks ago from the mouth of my seven year-old daughter.
She called one of her friends a dipthong.
I said, "Do you know what a dipthong is?"
Well, of course she doesn't. She's seven. It just sounds funny.
I told her, "It's a term used in English. It's a word used to describe a gliding vowel sound made up of two vowels together. Like the word 'eye'."
Apparently, this is way over the head of a soon-to-be second-grader. They continue to call each other dipthongs.
I must admit, it does sound like an insult.
*Photo courtesy of my soon-t0-be sophomore, who has taken beginning and intermediate photography with a dinosaur of a film/SLR camera, and is taking digital photography this year. This was taken with her brand new Canon Rebel, which I was able to afford thanks to her older sister, who has decided NOT to go to college this year. She is instead wanting to join the National Guard or the Reserves, thanks to her dumb-ass boyfriend (still in AZ) who got such a low score on the ASVAB that he just was assigned the job of "infantry scout", or some such thing, and leaves for basic training in January. This is a very long story, probably needing a different post. Don't get me wrong, I'm not against the military, but if it weren't for him and this stupid hold he has on her, she'd be starting college in three weeks, instead of sitting on my couch all day.
She's such a dipthong.