subs. (American colloquial).1. An exchange: e.g., a swopping of knives. Also as verb = to exchange.
2. (Christs Hospital).See quot.
1900. Daily Telegraph, 16 March. London Day by Day. After the boys had concluded their simple repast of bread and butter, they formed up two-and-two, and bowed to the Lord Mayor, the different wards being headed by THE TRADES as the boys who carry the candlesticks, the breadbaskets, table-cloth, and cutlery are termed.