Green’s Dictionary of Slang

(US) to act (deceptively) in an eccentric or stupid manner.

1969		‘Iceberg Slim’ Pimp 138: I’ll ‘nut roll’ on her [...] I’ll go ‘Sweet William’ on her.
1992		Bentley & Corbett Prison Sl. 50: Nut Role To act crazed or abnormal. [...] ‘I nut roled on them so they wouldn’t put me in isolation.’.