1923

1923 is short for sw, with s being the 19th letter in the alphabet, and w being the 23rd. Sw is short for sex work. This slang can be used the discreetly express your intentions for selling or buying sex work, such as hook ups, nudes, phone sex, etc.

(in a chat on a dating app, from sex workers perspective)
Match: heyy
Sex worker: hey, whats up? 1923, right?