Used to describe something that is undesirable, boring, all around terrible.
Also - bilved, bilves, bilvage
This word was created when a co-worker and I were having a conversation about our supervisor whose last name was Silver.
"Silvery is so bilvery" - that's how it started.
These moldy chicken wings are so bilvery.
Man, today at work was pure bilves.
I really bilved that one up.
Here comes Mr. Bilvadere. (Sometimes used to describe someone that is bilvery)