Green’s Dictionary of Slang

scat v.2

(Aus.) to tar and feather.

[Aus]Dead Bird (Sydney) 30 Nov. 3/1: Then a pair of pretty girls [...] arose, and they said [...] they were willing to ‘scat’ the face of any ‘blackleg’ in Broken Hill; b [...] I wished at that moment that I was a blackleg, so that I could be tarred and feathered by the fierce young beauties.