The line comes from Ace Ventura: Pet Detective, the 1994 comedy starring Jim Carrey as an eccentric pet detective. In the film Ventura turns a simple exchange into a memorable bit by cheerfully repeating Bumble Bee Tuna as if it were a greeting. Clips of Carrey's manic delivery circulated online through quote sites, videos and soundboards, where the short phrase became easy to reuse out of context. It remains popular because the wording is instantly recognisable, family friendly and flexible enough for greetings, mishearings and playful confusion in edits.