one-trick-ponyism

English

Etymology

one-trick pony +‎ -ism

Noun

one-trick-ponyism (uncountable)

1. The state of being a one-trick pony.
   • 2003, The New Yorker, page 17:

     Finally delivering “Room on Fire,” the follow-up to their much ballyhooed debut album, the well-heeled but stylishly bedraggled locals try to dispel accusations of one-trick-ponyism.