wordsind,
now that MP has been dutifully summoned to do their little dance, I must disencumber you of this misapprehension.

cornobbled - [adj] hit with a fist

Mrs. Byrne's Dictionary of Unusual, Obscure, and Preposterous Words - First Carol Publishing Group edition, 1994

p.s. - google turns up one hit on cornobble, which has perpetrated the same misreading and added some fowl play:
fowlobble - to hit with a rubber chicken.