A creature who lives in the caves of Croatia, mostly female, who like to suck the blood out of innocent victims in the middle of the night.
Oddly enough, most Neras are vegetarians.
They have now migrated to Canada
where they live hugely influenced by Western culture.
You may even see a Nera listening to Lil Wayne.
"I caught a Nera last night right before she was about to suck all my blood out!
And then we traded Lil Wayne cds!"