- a woman employed by a bar, nightclub, etc., to act as a companion to male customers and induce them to buy drinks.
Origin of B-girl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
1936, abbreviation of bar girl, U.S. slang for a woman paid to encourage customers at a bar to buy her drinks.
Online Etymology Dictionary, © 2010 Douglas Harper