In NY you get "sent up the river" (to Sing sing-- but if you want more about Sing sing-- look for a thread about places with double names...)

you get taken there in a "paddy wagon"-- (an ethic slur name for police wagons-- named come from the 1860-- when there was a large influx of Irish-- and to many got to drunk for local tastes-- they got hauled away in a police wagon that was soon nicknamed a ~.

Locally-- the "holding area" is the "Tombs"-- as in "I got arrested protesting and spent in the Tombs..."

Is Triangle still used in UK for a prison guard? Here the guards are often called "screws"