Simply put, a dirtster is a hipster
who's just dirty. Hipsters
are carefully put together as to look like they just woke up and suddenly looked this cool. Dirtsters are subtly different. They did just wake up and, unlike the hipster, just put on their only pair of pants.
They are known for drinking cheap beer, smoking cigarettes that have already been half smoked, dumpster diving, asking "are you going to eat that?", and smelling just a bit funky. In a dimly lit, well ventilated environment, the hipster and the dirtster are almost impossible to differentiate. Careful attention to behavior, however, will revile their true identity.