The clip comes from Kung Fu Panda, the 2008 DreamWorks animated film about Po, a clumsy panda voiced by Jack Black who is unexpectedly chosen as the Dragon Warrior. Trained by Master Shifu, Po spends much of the story out of his depth while facing threats like Tai Lung, which is why his clueless lines became so reusable online. Fans cut this short exchange into a standalone reaction sound and share it on soundboards and in edits whenever a situation calls for an honest admission of total confusion.
About this sound
Po from Kung Fu Panda admits he has no idea how to do something in this confused voice clip, used for clueless reactions and funny fails online.
This is Po the panda sounding completely lost when Master Shifu expects an answer he simply does not have. His delivery goes from eager to baffled in a few seconds, with that honest, slightly panicked tone that makes the confusion feel real rather than acted. It works because everyone knows that moment of being put on the spot with no clue what to say. Creators drop it in when a character, or they themselves, are caught pretending to understand something they clearly do not, and the awkward honesty gets the laugh.