i keep hearing people saying the word asia, what is this asia?

Asia:

1. A place that's so big that no matter how you define it, some other part of it is going to prove you wrong.

2. Can be used to describe any place you want.

3. a hot girl of asian decent

Asia is the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations.

In mythology, Asia was a character in Greek mythology, daughter of Oceanos.

Dictionary.com says this:

a continent bounded by Europe and the Arctic, Pacific, and Indian oceans. 2,896,700,000; ab. 16,000,000 sq. mi. (41,440,000 sq. km).

dont be stupid man. its a continent. its a country.