lag

prisoner as in "old lag"

Big Len was an old lag out a' the Srubs

DS

Drug Squad i.e. police

I hear Brief-case Steve got fingered by the DS

spin

insult, short for "spin on this ..." (upturned finger), i.e. "go fuck yourself"

hey smart arse - just spin babe

easy peasy

(uk) very easy (short for easy-peasy-lemon-squeezy)

18 pints? easy-peasy!!

DB

the dog's bollocks, i.e. the best

that car is the db round here

gog

(esp. in Scouse) person from North Wales
(pos orig from Welsh "goggledd" = North)

the pub was full of fuckin Gogs

pre-spunker

aldolescent boy who does not yet ejaculate, or, generally - under aged/illegal gay partner

I waited for an hour in the bog, but all I saw was a cute blond pre-spunker