Ol'blit--Help, a difficult word!

This is what I read:

The heart of the ID3DXSprite interface is the Draw() function, which provides all the functionality to do a good ol' blit.

Can anybody tell me what ol'blit means here? Thank you!

For 'blit' check The Free On-line Dictionary of Computing, www.foldoc.org

"good ol'" here is just short for "good old" meaning "familiar".