Wikipedia
A ginger group is a formal or informal group within, for example, a political party seeking to influence the direction and activity of the organisation as a whole. Ginger groups work to alter the party's policies, practices or office-holders, while still supporting its general goals.
The term derives from gingering a horse to make it seem more lively, or "gingering up" a food or beverage to add flavour or spice.
Ginger groups sometimes form within the political parties of Commonwealth countries such as the United Kingdom, Canada, Australia, New Zealand, India, and Pakistan.
The ginger group, in Queensland politics was a group of Liberal Party of Australia MLAs during the 1960s, 1970s and 1980s, who despite nominally being a part of the government, were opposed to some of the policies of their senior coalition partner, the National Party of Australia. Initially a small informal grouping within the Liberal Party, the group came to wield greater and greater power within the Liberal partyroom, culminating in Terry White's successful leadership challenge in 1983, and the party's subsequent defeat and loss of influence at the 1983 election.