The jump, or dining-room jump; a species of robbery effected by ascending a ladder placed by a sham lamp- lighter, against the house intended to be robbed. It is so called, because, should the lamp-lighter be put to flight, the thief who ascended the ladder has no means of escaping but that of jumping down.
JUMP
Meaning of JUMP in English
Slang English vocab. Английский сленговый словарь. 2012