These usages are arranged alphabetically, all having something to do with the theme of "the professions."  For fuller information about each usage, see the main list.  There are twenty-six files there.  Just click on to the appropriate letter.
 

Ali, or Alley: barber

bailiff: debt collector

barrer girl:  handcart girl

beak, the: judge

binnie: trash collector

bizzies: police

blockerman: foreman

booze jerk (or booze jerker):  bartender

bottler:  the one who passes the hat after a street performance

boxer: coffin maker

brown job, a:  soldier(RAF, RN)

busys: police

can lad:  makes tea for workers

clubman:  bill collector

coggy (or cokey) watchman: night watchman

cowboys:  fly-by-night tradesmen

cuzzies:  customs officers

dee:  detective

dicky-docker:  rabbi

dock walloper:  dock worker

Echo koshers:  newsboys

fang farrier: dentist

filth: the police

firebobby: fireman

gaffer:  honcho, boss, paterfamilias, etc.

gerund grinder: English teacher

gom:  policeman

Jack: detective

jangler-wrangler:  piano player

judy-scuffer:  woman police constable

knocker:  door to door salesman

lecky man:  electric meter reader

lollipop man:  children's crossing guard

milk feller:  milk man

mingees:  police

molar mauler:  dentist

muckman:  refuse collector

muskers:  police

night-man:  social worker who makes unannounced night inspections

Old Bill:  police

Paddy Kelly: dock police officer

piss prophet:  physician

plainees:  plainclothes detectives

pongo: a soldier or a marine

queer fella:  policeman

ragman:  junkman

rentfeller:  rent collector

Rozzer:  policeman

sanny:  sanitary inspector

Saytn 'imself:  the rent collector

screw:  prison officer

scuffer:  policeman

shellback:  sailor

shifter:  removal man

sin shifter:  priest rabbi, parson

slop: police constable

sparks:  electrician

sweeny:  barber

tallyman:  collector of installment payments

tatter: rag collector

ticker quack:  cardiologist

Wicked, the: the police

winger:  ship's steward

yard dog: customs officer