The 'Not A Happy Birthday Boy' video meme features an unexpected twist that perfectly captures the moment a birthday celebration goes awry. This clip showcases a young boy who, despite being the center of attention, expresses profound disappointment, which resonates with anyone who has faced unfulfilled expectations during their special day. The humor arises from the dramatic contrast between the typical joyous atmosphere associated with birthdays and the boy's sulky demeanor, making it relatable and shareable.