Examples
“Even sympathetic discussions tend to focus on the unusualthe humorous entries, the weird words bicipitous; jobbernowl; trolmydames.”
“Zeuxis, who killed himself with laughing at the sight of the antique jobbernowl of an old hag drawn by him.”
Five books of the lives, heroic deeds and sayings of Gargantua and his son Pantagruel
“Frenchman for cocking his beaver so bravely; and our jobbernowl”
“Keep thy jobbernowl to thysel '," said the indignant Betty, when she had made sure of this favour.”
“Mets in 2005, and was just a regular jobbernowl off the scrap heap, would he even be close to consideration for a spot on the Opening Day roster?”
“141 Bicipitous Serpents with the head at each extreme, jobbernowl is 'A blockish or stupid head; a ludicrous term for the head, usually connoting stupidity' 1599 MARSTON Sco.”
“_jobbernowl_, and shaded his right peeper, while a white beaver crowned the occiput of the Magus.”
“a faggot-stick or his sword to the rascal's jobbernowl, give him the gentle lash, or make him cut a caper out at the window, by way of correction.”
“But listen: Creed's a dhrivlin 'jobbernowl that orders his comin's be th' hang av th 'moon, an' his goin's be th 'dhreams av his head.”
Lists
These user-created lists contain the word ‘jobbernowl’.
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It means what?
Definitions you'd never surmise from their spelling.
vexillologist, biocide, earworm, moon carrots, logorrhea, uberous, unguiculate, uropoietic, reciprocornous, recrudescence, rectrix, succorrhoea and 39 more...

reesetee I like the OED definition: "A blockish or stupid head; a ludicrous term for the head, usually connoting stupidity."
Usually connoting stupidity? Jul 31, 2008
rijola The freedictionary.com defines this as "a blockhead." Jan 18, 2008