Definition of "cockhead"

cockhead¹

noun
plural cockheads
1. (vulgar, slang) The glans penis.
  Quotations
  He says oh that feels great, could you squeeze a bit harder on my cockhead?
  2003, Matt Bernstein Sycamore, Pulling Taffy, page 64
2. (vulgar, slang, derogatory, synecdochically) Dickhead, a term of abuse.
  Quotations
  I'm star material, you cockhead. Just look at me!
  2003, Jerzy N. Kosinski, The Devil Tree: A Novel, page 89

cockhead²

noun
plural cockheads
1. (engineering) The rounded or pointed top of a grinding mill spindle, forming a pivot on which the stone is balanced.