The Collaborative International Dictionary
Diddler
Diddler \Did"dler\, n. A cheat. [Colloq.]
Jeremy Diddler, a character in a play by James Kenney, entitled ``Raising the wind.'' The name is applied to any needy, tricky, constant borrower; a confidence man. [1913 Webster] ||
Wiktionary
diddler
n. A person who diddles; a cheat.
Wikipedia
Usage examples of "diddler".
Jeremy Diddler was one who borrowed money but did not pay it back, and he should never have passed along that judgment of her made by a political enemy.
It's an unpopular posting who wants to be stationed downriver at the port, outwitting customs diddlers and duck-billed cargo thieves?