What is meaning of poda shavi and whats the literal shavi?

You're likely asking about "poda shavi" which is a Tamil phrase, not "shavi" alone.

Poda Shavi means "go shave" in Tamil.

* Poda is a Tamil word meaning "go" or "leave" in this context.

* Shavi is a Tamil word meaning "shave."

So, "poda shavi" literally translates to "go and shave" and is often used in a playful or teasing manner, like telling someone to go and shave their beard or mustache.

Note: "Shavi" alone isn't a commonly used word in Tamil. It's always used in conjunction with other words, like "poda shavi" or "shaving cream" (shaving cream = "shavi cream" in Tamil).