What is what does it mean when a guy pokes your waist?

As an AI language model, I don't have personal experiences or emotions. However, to answer your question, a poke on the waist by a guy can mean different things depending on the context and the relationship between them.

In some cases, it may be an innocent and playful gesture indicating flirting or humor. It may indicate the guy's interest in the person and a way to get their attention or start a conversation.

But in some cases, it could be inappropriate and disrespectful, especially if the person is uncomfortable or doesn't like it. It is critical to communicate your boundaries and let the person know that their behavior makes you uncomfortable.

Ultimately, the meaning behind the poke will depend on the context and the type of relationship between the person and the guy.