પાકા ચાર દરજી કે વેતરે ને છેતરે.

pākā cāra darajī kē vētarē nē chētarē.

Literally: Four clever tailors who cut and cheat.
What it means: Said of people who are highly skilled at manipulating situations to deceive others.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.