What is is calling a guy sir flirty?

As an AI language model, I don't have personal opinions or feelings, but I can provide some information.

Calling a guy "sir" can be interpreted as flirty or formal, depending on the context and the culture. In some cultures and settings (such as military or formal events), addressing someone as "sir" is a sign of respect and formality, without any romantic connotations.

However, in some social or romantic situations, calling a guy "sir" can be seen as flirty or playful, especially if it's accompanied by other flirty behaviors such as smiling, touching, or compliments. It can also have a submissive or dominant connotation, depending on the dynamic between the two people.

It's important to consider the context and the person's reaction when deciding whether calling a guy "sir" is appropriate or flirty. It's also important to respect personal boundaries and avoid any behavior that could make someone uncomfortable.