1. a punishment cell.
|Dict. of Sl., Jargon and Cant.|
2. prison bread.
|Lag’s Lex. 48: cob. The regulation prison ‘loaf’ of about 8 oz. weight. ‘A cob and butter’ = a prison loaf and a margarine ration. Together these commodities are worth anything from one to three ‘roll-ups’ in the prisoners’ market.|