informal a violin
Brit, informal a dishonest practice; a swindle
Brit, informal an activity involving intricate manipulation
It was a bit of a fiddle to get all these wires back in place
a device to keep objects from sliding off a table on board ship
on the fiddle
Brit, informal taking part in dishonest practices
[Old English fithele violin, prob from medieval Latin vitula instrument played at festivals, from vitulari to celebrate]