સાપના દરમાં હાથ ઘાલવા; સાપના મ્હેમાં હાથ ઘાલવા.

sāpanā daramāṁ hātha ghālavā; sāpanā mhēmāṁ hātha ghālavā.

Literally: To put one's hand in a snake's hole; to put one's hand in a snake's mouth.
What it means: Said of taking an extremely dangerous and foolish risk.

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.