Someone who acts professionally to serve as a go-between for people or business with a complaint about specific legislation and the relevant government minister/secretary. It is in the interests for politicians to not only keep attuned of the effect of possibly problematic legislation but also to have that communicated in quick and efficient manner by an experienced and knowledgeable operator. The fact that corruption often occurs in the lobbying process does not deny that lobbying is still mostly a legitimate function. Term derived from hotel lobbies where politicians were originally approached by applicants.