Derf 'til You Puke

I was reading something the other day – I don’t remember what, exactly, maybe an obituary writing manual – and I came across the word “underfed”. It looked strange to me, as if it should be pronounced “un-derft” instead of “un-der-fed”. I thought, “un-derfed” should be its own word, as in undoing an act of derfing. For all I know, it is an official word. So I looked it up in the dictionary. To my surprise, underfed was in there! Its definition is to have fed insufficiently. This leads me to believe that, in turn, “to derf” is to feed sufficiently. I plan to derf myself on a nice steak dinner tonight to celebrate my new knowledge.