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Webster 1828 Edition

Noun.

[L. A lump; or from nod.] The head; in contempt.

Come, master, I have a project in my noddle.

noddle ‎(plural noddles)

(Britain, informal) The head; the part of the body of an animal or human which contains the brain, mouth and main sense organs.
(Britain, informal) The head; the seat of mental capacity or intellect.
(obsolete) The back of the head, nape.

For usage examples of this term, see Citations:noddle.