Definition of put or lay one's head or neck on the block in English:

put (or lay) one's head (or neck) on the block

informal Put one’s standing or reputation at risk by proceeding with a particular course of action.
[with reference to the executioner's block]
More example sentences
  • Councillors often have to make difficult decisions, often putting their head on the block.
  • If it's not, I will be putting my head on the block again.
  • But I'd have to to be totally sure that I was on to a winner before putting my head on the block - watched by half the world.
See parent entry: block

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Pronunciation: ˌəʊlɪˈadʒɪnəs
rich in, covered with, or producing oil; oily