Unpleasant person, derived from the British sitcom of the 1970s "Porridge".

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

Geek + Nerd
He is smart as a nerd but childish as a geek.

A word used by Harry Secombe's character, Neddie Seagoon, in the 1950's BBC radio comedy The Goon Show, to describe an insignificant character, often Bluebottle, with connotations of a fool or some of unfortunate circumstance.

A foolish or insignificant person.

I found it in a dictionary once so it is not slang.

a combination or a NERD and a DORK

A slang term for chips in parts of Northern England. Mostly Yorkshire.