Sp list item access via c# - clarification

Question

This may be a stupid question but I'm trying to understand what this line of code does. I get that it accesses a list item - but for what List?

SPContext.Current.ListItem.Properties["TwitterUsernames"] 

Could someone shed some light on it for me please?

Answer 1

I think it would get the data in the column 'TwitterUsernames' for the current item.