Someone, that just randomly exists. The username was originally made back in 2013 (I don't remember the year...), and it was started being used almost everywhere at 2016.
He is a hungarian, so that's why the username is pretty hard to pronounce. He's also a furry since 2020 August.
He isn't a well-known guy, so there isn't much to know about him.
someone: Welcome, uhh... "szbencucus". How do you pronounce it?
szbencucus: Eh, enough just calling me "sz", or "Greeny", or however you feel like it.
Swear word commonly used as an exclamation paired with strong emotions. Actually it's an insult to the Abrahamic God, it comes from the swedish “Szblikîn” (pig) and “kinårr” (God). It could be compared to the Italian “Porco Dio”
“Szblikinårr! Why the fuck did you do that? I hate you.”
“Szblikinårr, yes! I got 100/100 on my exam!”