Green’s Dictionary of Slang

nut role v.

also nut roll
[nut role n.]

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

[US]‘Iceberg Slim’ Pimp 138: I’ll ‘nut roll’ on her [...] I’ll go ‘Sweet William’ on her.
[US]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.’.