Green’s Dictionary of Slang

(US) of a woman, to act in an overtly promiscuous manner.

1964		Leitner & Lanen Dict. Fr. and Amer. Sl. 2: To alley cat around [...] courir les femmes.
2002		Austin Chronicle 17 May 🌐 ALLEY CATTING Always hoping for a gay dance club alternative to Oilcan Harry’s, my friend Neil and I went to the party for the opening of Club M&M.
2005		www.writersontheloose.com 🌐 If some want to alley-cat around, so be it, but my experience is that many gay & lesbian people just want the things in life that everyone else is striving for.