Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
I think it's generally assumed McCoy was being facetious, since in The Immunity Syndrome (episode 19 of season 2) Spock says Vulcan has never been conquered.