Definition & Meaning of "bean flicker"in English

What is the origin of the term "bean flicker" and how is it used?

Bean flicker is a slang term that appeared in mid-20th-century English as a crude label for a lesbian. The term comes from the literal imagery of "flicking beans," used metaphorically to refer to performing oral sex on a woman. Historically, it was derogatory and vulgar, intended to mock or demean women for their sexuality. Today it remains highly offensive, and its use is generally limited to sexualized, informal, or historical contexts rather than polite or neutral conversation.