Green’s Dictionary of Slang

poot n.2

[poot v. (1)]

1. a fart.

[US]Frank Zappa ‘Let’s Make The Water Turn Black’ [lyrics] Ronnie helping Kenny helping burn his poots away.
[US]Maledicta VII 150: What did you call ‘them’ at your house? Barks? Poots? Smells? Snappers? Smiffles? Stinkies? Toots? Whiffles?

2. (US) an unpleasant person; sometimes used affectionately.

[US]P. Conroy Great Santini (1977) 416: ‘You all right, poot?’ Coach Spinks said.