Green’s Dictionary of Slang

(US) a bootlegger.

1922		Broadway Brevities Aug. 20/2: His chief bootlegger called; Dave and his wife answered the door. ‘Here’s your order’ said Bootie.
1929		Sat. Eve. Post 13 Apr. 76: That new bootie [...] carries a powerful line of hooch! [W&F].
1938		D. Runyon ‘The Three Wise Guys’ Runyon on Broadway (1954) 399: I am a bootie for a long time.
1938		D. Runyon ‘Situation Wanted’ Runyon on Broadway (1954) 659: In the old days when Benny is a bootie, he is one of my best customers.