hobby tribe
n.— «The most fanatical of user groups can be thought of as “hobby tribes,” a phrase coined by science fiction writer David Brin. Hobby tribes are very informed, very connected, very smart customers. They band their enthusiasms together and become the experts. In some smaller niches they become the market too.» —“Book Review: In Praise of Expert Amateurs & Passionate Hobbyists” by Nicole-Anne Boyer Fuzzy Signals Jan. 6, 2005. (source: Double-Tongued Dictionary)
Further reading
Jim in Columbia, South Carolina, has noticed sportscasters’ use of the phrase on the season with reference to a period of time. This construction shows up in the sports pages as early as the 1880s, first referring to a team’s revenue and...
The slang phrase someone ate and left no crumbs means the person did something really well. In a previous call, a listener who works in theater noted the use of ate to mean “did something well,” as in they really ate that haircut! This...