He got a hole in one.
Getting an elephant pregnant in a Volkswagen.
Two very unhappy animals.
Gynecologist - because in the hole that the whole world is looking for pleasure, he's looking for problems.
A bowling ball. Or Bruce Wayne's parents.
He couldn't keep it down to 18 holes.
They always turn out to be sub par.
Because I wore the wrong pair of socks this morning.
If she's only wearing one sock. (This joke brought to you courtesy the homeless guy outside my local 7-11.) Edit: tweaked the punchline.