posh git 

Someone who is very classy and sophisticated at doing the following:

1. A completely ignorant, childish person with no manners.

2. A person who feels justified in their callow behaviour.

3. A pubescent kid who thinks it's totally cool to act like a moron on the internet, only because no one can actually reach through the screen and punch their lights out.

"3 days left until handing in the group report and he's done absolutely nowt".
"What an utter posh git!"

posh git by justfiedPR February 11, 2014