Actually originates from prison slang in the UK. A job often given to the lowest inmates was to put cardboard dividers into boxes. Someone given this job was a 'divider' or a 'div'. Now used as an insult to those who display stupidity.

A slang term for a stupid person

someone who lacks intelligence (an idiot)

a person that is stupid, or a insult

Div is a scouse word for idiot. It is short for divvy which in turn is a corruption of Deva. The Deva Hospital was a well known mental hospital (since renamed the West Cheshire Hospital) on the outskirts of Chester. Chester was founded by the Romans who named it Deva. Go on - you're impressed, aren't you!

Derived from "individual needs child", a cruel schoolyard insult. Not at all politically correct.

Someone who's "not quite normal", an idiot, spaz, etc.

Abbreviation for Divergence, an important concept in vector calculus.

Div expresses the expansion (or contraction) of stuff inside of a volume.