1. a shnerb is one who frequently paints their arse green and runs around on a flag pole thinking it is a flying broom stick. you can casually find them at your local barbeque parties shouting "WHERE'S MY FUNZIES TOY, HERMI-ONE?!"
2. a flanimal that Ricky Gervais had created with his wife
ellis, "Hey, do you remember that shnerb who crashed your BBQ party?
roonie, "Yer, I think it hit my balding dad with a stick threatening him with the avada kedavra curse"