reform club
/rɪˈfɔːm klʌb/noun
1A club instituted to promote political reform. Frequently (with capital initials) in the names of particular clubs.
2Specifically. With capital initials. (The name of) a London club in Pall Mall, founded in 1836 for supporters of the Great Reform Act of 1832.
3 US. A temperance club. Now historical.
Origin
Early 19th century; earliest use found in The Times. From reform + club.