A person who thinks that they are the greatest teacher in the world and like to call people idiots.
Commonly a maths teacher and a science teacher.
"I do not teach idiots and YOU ARE AN IDIOT!!"
"That Mr. McIntyre is the smegiest"
Somebody who is very annoying and usually comes from australia, they like maths and cricket and have stupid names like McIntyre
I don't teach idiots and you're an idiot thats a quote from the smegiest of smegstians