Definition: "Mutt and Jeff" is the name of a golf tournament format or a side bet in which the focus is on par-3 holes and par-5 holes only.
The round of golf is completed, then the total net score for each player or each group on the par-3 and par-5 holes is recorded. The low net on those long and short holes is the winner.
The name comes from the comic strip Mutt and Jeff, which appeared in newspapers from the early 1900s into the 1980s and focused on the hijinks of two friends, one big and the other small. So Mutt and Jeff on the golf course means playing the big holes (par-5s) and the small ones (par-3s).
