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Related to diddler: fiddler

did·dle 1

tr.v. did·dled, did·dling, did·dles
Slang To cheat; swindle: "The Swiss have special laws for people who diddle hotels" (John le Carré).

[Perhaps akin to Old English dydrian, to deceive, or from variant of dialectal doodle, fool, simpleton; akin to Low German dudeldopp.]

did′dler n.

did·dle 2

v. did·dled, did·dling, did·dles
1. To jerk up and down or back and forth.
2. Vulgar Slang
a. To have intercourse with (a woman).
b. To practice masturbation upon.
1. To shake rapidly; jiggle.
2. Slang To play experimentally; toy: The children diddled with the knobs on the television all afternoon.
3. Slang To waste time: diddled around all morning.

[Probably alteration of dialectal didder, to quiver, tremble, from Middle English dideren, variant of daderen, doderen; see dodder1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Slang. A person who cheats:
Slang: gyp, gypper.
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n (inf)Spitzbube m, → Gauner m
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
Rover too;--you might get up Rover while you were about it, and Cassio, and Jeremy Diddler. You can easily knock them off; one part helps the other so much.
Goblin or nut, chickpea or seed--in Germany, it's called kitzler , which translates to "tickler." Yet cuter still, the Greek diminutive, keitys: a derivative of "miniature hill." Slug or bulb, little chub or diddler. The clitoris exists in ostriches, it stretches eight inches, and kangaroos: they have two.
Peacefully on 11th October 2015, aged 93 years, Lily, beloved wife of the late Cyril (Diddler), loving mam of Carol, Joan, Linda, Garry, Muras and the late Clive, a devoted nana, great nana and great great nana who will be greatly missed by all her family and friends.
Odell also played an "amusing" Fainwood to Irving's Jeremy Diddler in James Kenney's farce Raising the Wind at the Lyceum the following March but for only a few performances (Standard, 2 Apr.
French Minister of Culture Frederic Mitterrand, meanwhile, said he was "dumbfounded" by Polanski's arrest in Switzerland, adding that he "strongly regrets that a new ordeal is being inflicted on someone who has already experienced so many of them." According to France, Polanski may be a diddler, but he's their diddler.
It goes on, at length, from there, excoriating The Record's publisher as "an irrepressible little diddler" with "no more political principle than a Berkshire sow."
The diddler at the bottom' of the browser screen going back and forth, back and forth like a caged crazed animal.
Dip Diddler, an average guy, has just latched onto a couple of computing's latest fads: the ability to play and save music and movies on his DVD-equipped computer.
When the compact disc first appeared, I naively believed that the days of the audio-system "diddler" were numbered and that the era of the "happy music lover on a shoestring budget" was about to dawn.