“I think being a one-trick pony is not the long game here,” Fishman says.
But she also has to contend with photographers looking to exploit her as a one-trick pony to shock their audiences.
From a revenue perspective, like Google, Facebook is essentially a one-trick pony.
any person or group with only one discernable trait, talent, or area of expertise
That actor proved to be a one-trick pony.
from act in Cuffling Cousins Circus of mid-1800s
A person having a single accomplishment: As he proved during exquisite ballads and mid-tempo tunes, he's no one-trick pony/ For years, Twentieth Century Fund has been known to investors as a one-trick pony (1990s+)