diddle
\DID-l\
verb
1. Informal. to cheat; swindle; hoax.
Quotes
"There's only so much even Parliament can do about the Viceroyalty of the Cape, much less the throne. The way they diddle the franchise laws over there — " He shrugged.
-- S. M. Stirling, The Peshawar Lancers, 2003
Origin
Diddle is of unknown origin. It entered English in the early 1800s.
Dictionary.com
