મેવાળાને શેરડે ન જાણે ને મારું નામ પગી.

mēvāḷānē śēraḍē na jāṇē nē māruṁ nāma pagī.

Literally: Does not know the tracks of the Mewada, but my name is Pagi (tracker).
What it means: Said of someone who pretends to have expertise they do not possess.

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.