Green’s Dictionary of Slang

1. (US Und.) to start; esp. of a horserace.

1949		Monteleone Criminal Sl. (rev. edn).
1953		Berrey & Van den Bark Amer. Thes. Sl. (2nd edn).

2. (Aus.) to fart.

1983

R. Aven-Bray Ridgey-Didge Oz Jack Lang 43: Steve Hart Fart.