An Arnfinn is an evil creature who will wake you in the far too early in the morning and steal your candy. The Arnfinn is loves dad jokes and will make you laugh in embarrassment.
“That was a bad joke”
“He is an Arnfinn, that what he does”
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".