noun

• (cooking, also attributively) Poultry which has been cut along the spine and spread out for more even cooking.
  "Spatch cock, abbreviation of a diſpatch cock, an Iriſh diſh upon any ſudden occaſion. It is a hen juſt killed from the rooſt, or yard, and immediately ſkinned, ſplit, and broiled."

verb

• (cooking) To cut (poultry) along the spine and spread the halves apart for more even cooking.
  "For the party, he spatchcocked and grilled some chickens."
• (figuratively) Often followed by in or into: to interpolate or insert (something into another thing) awkwardly; to sandwich (something within another thing).
  "I, therefore, spatchcocked into the middle of that telegram a sentence in which I suggested it would be necessary to surrender the garrison, what he should do when he surrendered, and how he should do it."