2 Girls 1 Cup began as a trailer for the 2007 Brazilian film Hungry Bitches and quickly escaped its original context to become one of the early internet's most infamous reaction challenges. Friends would film each other watching it, and the horrified responses spread faster than the clip itself on forums and early video sites. The name alone soon worked as a warning and a punchline, often paired with a shocked sound in edits. It remains a reference point for gross out humour and viral shock content.