Definition & Meaning of "titbag"in English

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

"Titbag" is a slang term for a person regarded as contemptible or irritating. It appeared in late 20th-century English, combining "tit," a vulgar term for a breast often used insultingly, with "bag," implying worthlessness or disposability, to create a dismissive label. The term is used in informal, mocking, or hostile contexts, often among peers or online. It is vulgar and derogatory, never neutral, and conveys clear disdain.