Scelerat 

A villain, a despised renegade
Bad to the bone

I watched Batman on DVD last night, this penguin dude is a real scelerat

Scelerat by Cantakerous Celine September 18, 2008

Scelerat 

Often pronounced 'sell-a-rat', it means rat entrails, i.e. when you haven't been in the attic for a long time, and a full rat has now become a scelerat.

I went up into the attic today, and there were a lot of scelerats there.

Scelerat by mp3yt0n January 7, 2019

Scelerat 

Noun: when you go in the attic and you haven’t been in there in a long time, and what once was a full rat now is just a scelerat.

Man, I found a real scelerat last night.

Scelerat by Blooboy301 January 7, 2019