FUB - Fat useless bastard.
TNB - Thick northern bastard.
Shandy swilling, saveloy eating southern poofter- anyone from the Home Counties.
Viet Jock- an annoying Scottish nationalist type.
Viet Taff- Welsh equivalent.
Culshee- stupid inbred country types from the northern parts of Ulster.
A Sammy- Someone from Belfast, not too offensive, but certainly not complimentary.
A Spide- Belfast equivalent of a Chav.
A Millie- Female Chav from Belfast.
Conehead - someone from Norfolk.
OSLO - outer space liaison officer- anyone particularly out of touch or who makes stupid and impractical suggestions.
A Whenwe - someone who constantly tells boring or irrelevant tales, usually name dropping to try to impress, as in "When we were in...."
Elevenerife- someone who, no matter what you have done, or where you have been they have done it or been somewhere better, as in if you have been to Tenerife, he has been to Elevenerife.
Ten men- someone who thinks they are hard or particularly physically impressive when they clearly are not, as in "He thinks he is as strong as ten men"
Gearbox - an ugly woman, as in "she has more teeth than a Ferrari gearbox"
Fusebox - ugly woman again, as in "she has a face like a burnt out fuse box"
Benny - in general a very dim witted ( but harmless) male, especially in working mens clothes and wearing a watch cap. I believe Gomer Pyle is probably the US equivalent. Named after a character in a soap opera. Was frequently used to describe Falkland Islanders. (see below)
Still - Falkland Islanders were routinely referred to as "Bennies" by British Servicemen, until the matter was raised in Parliament and an order was given by the General Officer Commanding that they were not to be referred to as such. They them became "Stills", as in "No matter what the General says, they are still f**king Bennies"
Septic- A US citizen, the Australian slang "Sepo" has the same derivation, from rhyming slang, septic tank - Yank