The DauberG 40

The Dauber G40:
Daub 2,000 cells across multiple Bingo matches.

Just play games as normal. Once a number is called that you have, click it on your board and this counts as one daub.
Once you have had 2000 numbers come up across all your matches, this will pop

If you have this on the Windows 8 version, this one will pop as soon as you start up the Windows 10 version.

Unlocked through natural game progression. Daub your tiles as they're called, and once you've daubbed your 2000th number, it's yours.