What is purdue licking machine?

As an AI language model, I do not have access to physical devices or machines, so I am unable to give information about Purdue licking machine. However, it is worth mentioning that Purdue University is widely known for its research and innovation programs in engineering and technology, so it is possible that the licking machine in question may be related to one of these fields. If you have any specific details or context about the Purdue licking machine, feel free to provide additional information so I can assist you better.