FIR means fairway in regulation... Or did you land (and stay!) on the fairway from your tee shot. This would not apply to par 3's.
What Is Fir In Golf Terms?
FIR means Fairways in regulation. Basically, did you hit your ball onto the fairway with your first shot. They don't officially use that stat anymore though, they use "shots gained: Tee-to-green" now, which combines FIR with GIR (greens in regulation). I'm not 100% sure of how they calculate it, though. Hope this helped!
If you want to learn more, it's probably easier to just find a website that answers all such questions in one place, like this one.
Fir does not mean anything in golf, except perhaps the Fir tree :)
You might mean: 'fore - meaning 'Watch out afore' or ahead!
You might mean: 'fore - meaning 'Watch out afore' or ahead!