Examples
“I pursued the sad inquiry: 'A noodle, a pigwidgeon, a ninnyhammer, a bubble on the wave, a leaf in the wind, Madame! ”
“But in Malvina, side by side with much that is commendable, there appears to have existed a most reprehensible spirit of mischief, displaying itself in pranks that, excusable, or at all events understandable, in, say, a pixy or a pigwidgeon, strike one as altogether unworthy of a well-principled”
“Well, when we discharge pigwidgeon, your friend with the bell shape -- Jack Sheep yer -- all you got to do, Levin, is to send the hard cole to your mother by him, sayin ',' Bless you, marm; my wages will excoos my face! ”
“I’m proud of you for not mentioning The Bridgewater Treatises, particularly Babbage’s Fragment, which seems to come closest of them to Dembski’s blather. pigwidgeon”
Lists
These user-created lists contain the word ‘pigwidgeon’.
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Swine
For more aporkalyptic fun, see madmouth's Everything's better with a pig in it.
For "references to the Dursleys in Wizard People, Dear Reader, Brad Neely's cosmos-shattering voiceover ...swine, pig, hog, boar, pork, pork bellies, hog cholera, swineherd, pigsty, swine flu, oink, pig in a blanket and 185 more...

sionnach Noun. (Written also pigwidgin and pigwiggen.) A cant word for anything petty or small. It is used by Drayton as the name of a fairy.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
Also, I believe, a character in the Harry Potter books, possibly an owl, probably belong to a Weaseley boy.
(Too lazy to look it up) Jul 16, 2008