Someone who's (Who is) used, taken for granted, tricked, mislead and taken for basically a whore
The word Hollywood being used to describe the gravity of the WHORE the person is taken for as when we hear HOLLYWOOD we picture the Place where stars are made and everyone makes it big, dreams come true thus the Term HOLLYWOOD WHORE, someone that's Used as a stepping stone to make it big
Basically a HOLLYWOOD WHORE
His manager used him to make it big, played him like a HOLLYWOOD WHORE.