If we take the linked post at face value, it sounds to me like they had made 'forking a repo' a running non-sexual joke. When Adria overheard an instance of it,

If we take the linked post at face value, it sounds to me like they had made 'forking a repo' a running non-sexual joke. When Adria overheard an instance of it, she wasn't aware of their context, and it sounded like innuendo. With hindsight, taking it up with them in person, or leaving it to the conference staff, would probably have worked out better than going on a Twitter crusade.