Green’s Dictionary of Slang

1. (US) to complain, to criticize.

1914		Jackson & Hellyer Vocab. Criminal Sl. 88: wolf [...] To vehemently protest.
1949		Monteleone Criminal Sl. (rev. edn).
1971		E.E. Landy Underground Dict. (1972) 199: wolf v. Criticize; chop down.

2. (US prison) to banter; thus wolfing n.

1964		R. Abrahams Deep Down In The Jungle 50: ‘Sounding’ shows that the game is vocal, and ‘wolfing’ or ‘woofing’ points out the similarity of the procedure with a dog’s bark.
1969		B. Beckham My Main Mother 101: Murphy kept wolfing, kept jumping bad about our being scared.
1973		Cincinnati Enquirier (OH) Mag. 14 Oct. 44/2: Wolfin’ — Talking tough.
2002		(con. 1998–2000) J. Lerner You Got Nothing Coming 392: And we laughed and joked and wolfed away the day.

3. see woof v.¹ (2)