Definition & Meaning of "tosspot"in English

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

"Tosspot" dates back to 16th-century English, originally meaning someone who "tossed pots" of alcohol back—basically a heavy drinker. Over time the literal drinking sense faded, and by the modern period it became a general insult for a foolish, inept, or contemptible person. It is used mostly in British English, often with a slightly old-fashioned or comedic tone. It is derogatory but relatively mild compared to stronger insults.