Predict Uncharted 3: Drake's Deception's sales

[Jay520]

pezus said:

Jay520 said:

CGI-Quality said:

pezus said:
Doesn't look like I predicted here. Shame. It'll reach 6m+ easily

At its current rate, it'll breeze by 5 million in no time flat!

what does 'flat' mean?

It means something that is very smooth or level

the way he used it seems like he used a different definition of the word.