What is "dufnering"? It's a social media craze started by the winner of golf's PGA Championship, Jason Dufner. Check out this video showing people doing it a...
Jason Dufner: How Dufnering started
Keegan Bradley eagles No. 7 and celebrates by #Dufnering
@OldSchoolCaddie - The Dufnering Experience
Dufnering back in style after PGA win
Is 'Dufnering' the new 'Tebowing'?
Peter Jacobsen's "Jason Dufner" Impression