It's mostly middle/high schoolers using the term. Get with the times grandpa...

Some of us are not nearly that easy to embarrass.

i agree, sounds strange and like something that should have never caught on at all. the moral argument of this being a derogatory term aside, it doesn't even seem to capture that well and sounds so out of place. another that comes to mind is "toasters" from Battlestar Gallactica. both terms to me just feel weird and "written".

You sound just like the adults complaining about the things us kids would say when we were young.