B-drinker noun1 •(US, slang) Someone who drinks a B-drink; a young woman hired to sit at a bar and induce the customers to buy her drinks, or spend money at the bar; a B-girl."That po gal." Jones explored a booth with the broom. "Hustlin water, runnin erran. Whoa!" "Ring up the precinct about her. She's a B-drinker." — 1963 formsB-drinkers