wet end

wet end (plural wet ends)

1. The first section of a paper machine to which the pulp is delivered in a slurry form (as mixture of fiber and water).
2. Someone who is incompetent.
   • 1991, Stephen King, Needful Things:

     Sean's lower lip was trembling. "Kevin Pelkey says—" "Who are you going to believe? That wet end or your own brother? […]

   • 2010, Michael Causey, The Shaman's Wolf, page 164:

     Then the other grabbed the rifle from his friend and said, “You wet end! Here! Let me show ya how to do it.”