ઢીંગ મારવું તો દુબળું ન મારવું.

ḍhīṁga māravuṁ tō dubaḷuṁ na māravuṁ.

Literally: If you must strike a blow, do not strike a weak one.
What it means: Advice to aim high or act decisively when taking a risk, rather than settling for a half-measure.

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.