南郭濫吹

Reading
なんかくらんすい
English
Trying to fake talent
Notes
Nanguo(南郭) blows吹 the flute recklessly濫 Wanting the adulation of the crowd, Nanguo snuck into a group of musicians and tried to fake it on the flute despite having no skill. Afterwards, the emperor was so impressed, he asked to hear each musician separately, at which point Nanguo panicked and ran
Definition
無能な者が才能があるように見せかけて、よい地位を占めること。
idiomsKanKen 3