Jason Dufner -- Yeah, My Wife is HOT!!

Jason Dufner knows he's scoring way over his head -- not by winning the PGA Championship, but by landing his smoking hot wife ... and he's not shy about it.

Jason's been the talk of the sports world ever since his lady, Amanda Dufner (who's kinda Evangeline Lilly-ish), joined him on the 18th green last Sunday to celebrate his first victory in a major tournament.

Duf -- who won't be confused with golf studs Adam Scott or Dustin Johnson -- was in NYC on Tuesday when we asked what everyone's been thinking: How did YOU score HER?

It was posed more delicately than that, but check out JD's answer ... you gotta love this guy!