The Collaborative International Dictionary
Booser
Booser \Boos"er\, n. A toper; a guzzler. See Boozer.
Wiktionary
booser
n. (context obsolete English) A boozer, toper, or guzzler.
Usage examples of "booser".
Pious fraud but quite right: otherwise they'd have one old booser worse than another coming along, cadging for a drink.