Green’s Dictionary of Slang

(US) a prosecuting attorney; thus big cutor, a district attorney.

1926		J. Black You Can’t Win (1927) 227: ‘He’ll appear when you go on trial at the next term of court,’ said the ’cutor.
1933		Ersine Und. and Prison Sl.
1935		D. Lamson We Who Are About to Die 195: You holler bum beef, an’ it makes the bulls mad, an’ it makes the ’cutors mad.
1937		E. Anderson Thieves Like Us (1999) 35: This Colorado ’cuter was after me.
1946		J. Evans Halo in Blood (1988) 220: No ’cutor’s going to make a case out of that many guesses.
1949		Monteleone Criminal Sl. (rev. edn) 21: big cutor District Attorney.
1950		Goldin et al. DAUL 54/2: Cutter. (South; scattered Western areas) The prosecuting attorney.
1962		Ragen & Finston World’s Toughest Prison 796: cutor – A prosecuting attorney.