Green’s Dictionary of Slang

(US campus) a womanizer.

1926		Maines & Grant Wise-crack Dict. 6/2: Chicken butcher – Lady killer.
1945		‘Campus Sl. at Minnesota’ in AS XX:3 Oct. 233/2: Everyone knows he is a chicken butcher – a chic sheik and a candy leg.
1949		Monteleone Criminal Sl. (rev. edn).