It either means these things:
-A brave soldier in the
military.
-An edgy kid that commands other
edgy kids to raid someone's
discord server for no good reason, thinking he's a military leader of an army of edgelords.
-Another word for tank and/or soldier.
Kid: When I grow up, I want to be a warstar!
_________________________________________________________
Edgelord A: Raid this dude's
discord server because
I don't like him!
(*Army of edgelords raids Dude's
discord server*)
_________________________________________________________
Soldier A: When I saw the warstar, I was surprised by it's massive size!
_________________________________________________________
Fan A: That warstar in the show was very fucking big in comparison to the other warstars in the show!
Fan B: I know, right?