Definition & Meaning of "muppet"in English

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

"Muppet" is a slang insult that appeared in English in the late 20th century, originally popularized in Britain, using the name of Jim Henson's puppet characters as a metaphor for someone foolish, incompetent, or silly. The term emphasizes clumsiness, naivety, or lack of sense in a humorous or mocking way. It is used in informal, often playful or teasing contexts, including conversation, media, and online commentary. The term is mildly derogatory and usually lighthearted rather than harsh; its offensiveness depends on tone and context.