The Annoying meme category is a cornerstone of internet culture, popularized during the Advice Animal era with templates like Annoying Facebook Girl and Annoying Childhood Friend. These memes use specific characters to represent universally frustrating behaviors, from social media oversharing to childhood betrayals. Over time, the format has expanded to include various relatable scenarios and modern 'Karens,' serving as a humorous way for users to vent about minor inconveniences and social faux pas. Its longevity stems from the endless supply of relatable, annoying human experiences.