Translates directly to Fake Inspiration. Pseudomuse is the word used to describe a hipster, wannabe or poser. A pseudomuse is a person who claims to see something bigger than it really is, when really it's all a bunch of crap. The person has a fake inspiration.
Pseudomuse is also a word used to describe a thing someone claims to believe in. An attention whore who claims to love Jesus, is a pseudomuse who uses Jesus as a pseudomuse.
Commonly used as an alternate word for 'hipster' as the term has become too mainstream.