411 REFERENCE · Wiktionary
Sunday girl
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
en US obsolete slang girlfriend from 1884
en Are you taking your Sunday girl to the dance?
en 1884 Edwin A. Frear From Pier 39 https://books.google.ca/books?id=mklAAAAAYAAJ&pg=PA230&dq=%22his+sunday+girl%22 Just as one is rounded, too late to entirely avoid it, is seen exactly at the turn a single chaise containing a youth and his Sunday girl.
en 1960 Arizona and the West https://books.google.ca/books?id=FEoUAAAAYAAJ&q=%22his+Sunday+girl%22 In twenty-four hours the pot had filled to three dollars, and Charlie, who was going to town to see his Sunday girl, was delegated to subscribe to “some good newspaper.”
en 1999 No. 4 (album) No. 4 w:Stone Temple Pilots Down (Stone Temple Pilots song) Down I've been waitingA long time nowNow here's the answerYou're all mine nowYeah, I've been waiting for my Sunday girl