Put it at the very start of a greeting exchange, then follow it with You What SpongeBob for a confused reply before the scene moves on to the main joke.
关于此声音
This is a short spoken greeting, lasting just under seven seconds, in which a relaxed voice asks 'Sup?' and follows it with 'What's up?' The delivery feels easygoing and friendly, like bumping into someone you know and keeping the hello brief. It comes from the television show Community, where the line works as a familiar, low-effort way to open a conversation.