The "Tunbridge Wells" line is a contemptuous descriptor for traditionalist ("small-c") conservatives, generally used by people who regard themselves as progress

The "Tunbridge Wells" line is a contemptuous descriptor for traditionalist ("small-c") conservatives, generally used by people who regard themselves as progressive. See https://en.wikipedia.org/wiki/Disgusted_of_Tunbridge_Wells https://en.wikipedia.org/wiki/Disgusted_of_Tunbridge_Wells for a discussion of the phrase's origins. As with all such derogatory epithets, the wielder either doesn't realise how powerfully and instantly doing so undermines their chances of changing hearts & minds, or doesn't care because they only wish to preach to their own choir.