Siri is Apple's voice assistant, first introduced with the iPhone 4S in 2011, and its distinctive synthetic voice quickly became part of everyday phone culture. Short Siri-style greetings and responses were later shared online as standalone clips for jokes, edits and reactions. This high five version follows that pattern, turning a normal assistant interaction into a quick celebratory cue. It stays popular because the voice is instantly familiar to iPhone users, while the short length makes it easy to drop into social videos and chats.