What Is A Chav And What's A Boffin?

A Boffin is a smart, technological person. They helped save us in WWII with the German's "enigma" machine, cracking the code.
A chav is someone who has no life, practically lives on gum, speaks in a retarded way, they're completely and utterly stupid, and most of them end up as prostitutes or tramps :D

A chav is someone who is kinda cool and wears chav clothes
a boffin is a freaky geek who is too smart and spends all his time doing maths-always single!!!

A chav is calvin and a boffin is alfie