What is -지고
I have heard many Korean speakers use the ending -지고
For example: 만나가지고
What does it mean?
When do we use it?

Question

What is -지고
I have heard many Korean speakers use the ending -지고 
For example: 만나가지고 
What does it mean? 
When do we use it?

Answer

만나가지고(만나서) means 'and then', 'so'. It's one of colloquial style.
e.g., 나 길에서 친구를 만나가지고, 친구하고 같이 왔어(I ran into my friend on a street, so I came over with my friend)