ડીંગ મારવું તો દુબળું ન મારવું.

ḍīṁga māravuṁ tō dubaḷuṁ na māravuṁ.

Literally: If you boast, do not boast weakly.
What it means: When boasting or making grand claims, one should aim big rather than be modest in exaggeration.

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · 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.