Natyashastra
शिरः कण्डूयने चैव कुष्ठव्याधिनिरूपणे । संहव्याघ्रेष्वभिनयः प्रस्तरग्रहणे तथा ॥ १२१॥
It is used to represent scratching one’s head, depicting skin diseases, acting as a lion or a tiger, and seizing a stone.
english translation
ziraH kaNDUyane caiva kuSThavyAdhinirUpaNe । saMhavyAghreSvabhinayaH prastaragrahaNe tathA ॥ 121॥
hk transliteration by Sanscript