Giga Chad began as an internet meme based on ultra-muscular model photos shared online in 2017, with the character becoming shorthand for impossibly confident masculinity. As sigma male slang spread on TikTok and YouTube Shorts, editors paired the image with phonk beats and swagger edits, often alongside a rizz sound effect for flirting jokes. The combination turned into a reusable template for ironic glow-ups and entrances. It remains popular because the joke is instant, the beat is recognisable, and the contrast works without any dialogue or context.