Green’s Dictionary of Slang

gorilla v.

also gorill, gueril, guerrilla
[gorilla n.1 (1)]

(US black/Und.) to use violence, to intimidate; to rape.

[US]Goldin et al. DAUL 87/2: Gueril (or Gorill). To coerce; to bulldoze; intimidate.
[US]‘Iceberg Slim’ Pimp 233: Maybe ‘Poison’ will come back and gorilla me.
[US]E. Torres Carlito’s Way 11: I’d travel for blocks to duke with a cat that would try to gorilla a friend.
[US]H. Gould Fort Apache, The Bronx 55: So he spun him too hard, and Morgan almost fell over. ‘Don’t gorilla me, Murphy,’ he said.
[US]E.W. Emerson Help Wanted: Orphans Preferred 47: Plywood sheets were nailed across the fire escape where the original doors had been gorillaed off their hinges.
[US]Big L ‘Ebonics’ 🎵 To guerrilla mean to use physical force.

In phrases

be a gorilla in the washing-machine (v.)

(US black) to perform cunnilingus.

[US]E. Folb Runnin’ Down Some Lines 158: Expressions [...] that are [...] funny (to blow some tunes, to brush one’s teeth, to be a gorilla in the washing machine).