Definition & Meaning of "brainlet"in English

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

"Brainlet" is an internet slang term that emerged in the 2010s, particularly on online forums and social media, to describe someone considered unintelligent or having a "small brain." The word plays on the suffix "-let," implying a miniature or lesser version, combined with "brain," creating a metaphor for limited cognitive ability. It is often used in memes, trolling, and online arguments to mock perceived stupidity. The term is derogatory and mocking but usually humorous in tone, rarely used in formal speech.