Natyashastra

siva.sh/natyashastra/12/55

गतिं तत्र प्रयुञ्जीत बीभत्साभिनयं प्रति । क्वचिदासन्नपतितैः विकृष्टपतितैः क्वचित् ॥ ५५॥

sanskrit

In that (sentiment), the gait should be employed with repulsive acting, sometimes with near stumbling, sometimes with awkward falling.

english translation

gatiM tatra prayuJjIta bIbhatsAbhinayaM prati | kvacidAsannapatitaiH vikRSTapatitaiH kvacit || 55||

hk transliteration by Sanscript