The condition associated with former founders who've had success with one company and are stunted by the task of deciding what to work on next with heightened expectations and desires for it to be even bigger. This condition becomes especially petrifying when the founder has seen 1000's of ideas by that point in time, with no coherent pattern of success.
After Erlich Bachman sold his first company Aviato, he developed Second-Time Founder Syndrome and decided to invest in companies like Nip Alert instead until he gained better ground on determining what he wanted to do next. http://www.themacro.com/articles/2015/12/triplebyte-harjeet-taggar-startup-school-radio/