Some common indicators of a Dumpstar include the following:
Food and dishes strewn about/Clothes hapazardly placed in high traffic areas/ lots and lots of roaches in the ashtray/really loud noises(this may or may not be at odd hours of the night)/broken shit everywhere/holes in walls, etc.
~"Yeah, this kid said some shit about Ilija's sister so he got really loud and became an angry Serb...tore this kids head off...I mean clean off! Crazy shit man!"
"Uh, I was talking about the dishes and stuff lying around everywhere."
~"Oh right, well he did a bit of celebrating after his 'great success'."
".....that kid ain't just a dumpster anymore he's a fucking dumpstar!"