on the fiddle

US /ɑn ðə ˈfɪdl/
UK /ɑn ðə ˈfɪdl/
"on the fiddle" picture
1.

fare il furbo, imbrogliare

involved in dishonest or illegal activities, especially involving money

:
He was caught on the fiddle, taking money from the company.
È stato colto in flagrante, prendendo soldi dall'azienda.
Many politicians are suspected of being on the fiddle.
Molti politici sono sospettati di essere coinvolti in attività illecite.