Daddy Long Neck, whose real name is David Samuelson Jr., became an overnight internet sensation due to his distinctively thin physique caused by a medical condition. He embraced his unique look through comedic videos, flexing cash, and lifestyle parodies that exuded immense confidence despite his appearance. The meme reached its peak when he collaborated with Wide Neck, creating an iconic 'thin vs. wide' visual contrast that became a staple of internet culture. His image is typically used to represent extreme confidence, being an underdog, or as a humorous reaction to physical attributes in social situations.