Webster's Revised Unabridged Dictionary · 1913

Noddle

Noddle , noun

[Old English nodil, nodle; perh. from nod, because the head is the nodding part of the body, or perh. akin to English knot; compare Prov. English nod the nape of the neck.]

1.
The head; also, noodle; -- used jocosely or contemptuously.
Come, master, I have a project in my noddle. — L'Estrange
2.
The back part of the head or neck. [Obsolete]
For occasion... turneth a bald noddle, after she hath presented her locks in front, and no hold taken. — Bacon