A person who receives part of the salary of a place or appointment from the ostensible occupier, by virtue of an agreement with the donor, or great man appointing. The rider is said to be quartered upon the possessor, who often has one or more persons thus riding behind him. See QUARTERED.
RIDER
Meaning of RIDER in English
Slang English vocab. Английский сленговый словарь. 2012