Microsoft GA Plank Simulator
This is a fantastic thread, Kudos to the person that coined it but heck this is the best comment ever in this forum.
ReinstallReboot Simulator.
Microsoft Sightseeing Simulator.
I came up with a couple funny ones but then I thought, how’s that going to help us all?
If we can just make it out of 2020, the sim will be much better! I don’t want to insult the developers. I want to give them donuts and coffee and praise, so they will continue to WANT to develop this sim into what we all want it to be.
And Flight Simulator is the appropriate name, no connection to FSX or any old versions except in name. After all, it IS their trademark. P3D is based on the FS code after all, but Lockheed wasn’t allowed to use the name.
Microsoft Flight Simulator 1010…because it is half as good as they said it would. 
Real pilots say it doesn’t look like a real plane.
Aircraft developers say that it is impossible to establish the aircraft on the basis of SDK.
The emphasis is on the outside world, not on airplanes.
Therefore, the people went to create buildings, stadiums and cities.
So this is “Sim City Air”
iPad.
Not “the new iPad”, not iPad4, just iPad.
Like it’s a genre, not a name.
Microsoft Alpha Fly ~ Rush To The Skies!
I guess it’s Flight Simulator 12 or FS12
Busy Air. 
Never Ending Take Money from Users Reality Simulation.
NETMURS…
How about " Microsoft Flight - Moanulator - Not as good as XPlane tears - It’s a simcade not a sim - troll populating forums - can’t run on my toaster - Sim "
I think that’s catchy !!
Guys this started out as amusing - please keep it that way. 
Microsoft Air Flight Emergency Simulator… restart your engines before you hit the ground.
Microsoft Airline Passenger Simulator … Mommy look at the pretty scenery out the window .. But where are all the cows.
Microsoft We Got You Money Fools simulator … You know why!
CTD simulator ? 
FS20 - Beta 1.03 early access.
i would still pay the 120 but then don’t feel cheated into a sim that’s still in beta stage.
" Microsoft Flight Simulator 2020 : Cause a Divorce and Help get you Through a Divorce Edition " !!
Microsoft Flight II
Microsoft Bug Simulator 2020 