One who only likes new or "young" music. If it hasn't come out within the last 6 months, it isn't good.
Ralph: Don't you just love "Heart-Shaped Box"?
Betty: I used to.
Ralph: Why don't you like it anymore?
Betty: It's just so 90's.
Ralph: Geez, what are you, a musiclester?
A pseudo-sorta halfway collection of facial hair above the upper lip. Often referred to by earnest wannabes as a 'mustache', a mustiche is usually too sparse to be considered so.
This is the sort of facial hair commonly worn by teens in their first flush of facial hair growth, but it has in the past few decades seen a resurgence among hipsters as an ironic reference to porn stars and child molesters of the 70s.