Rogues who make it their business to defraud young apprentices, or errand-boys, of goods committed to their charge, by prevailing on them to execute some trifling message, pretending to take care of their parcels till they come back; these are, in cant terms, said to be on the kid lay.
KID LAY
Meaning of KID LAY in English
Slang English vocab. Английский сленговый словарь. 2012