pseud
noun [ C ] UK informal disapproving uk/sjuːd/ us/suːd/
假装对（尤指艺术、文学、音乐等）很了解的人，冒牌内行者
a person who tries to seem to have detailed knowledge or excellent judgment of a subject, especially in art, literature, music, etc.
He's such a pseud, with his talk of '"lambent harmonies" and "melting arpeggios". 他真是个冒牌行家，净说些“摇曳的和声”和“柔和悦耳的琶音”之类的话。