Golf balls

A man boarded a bus with both of his front pockets full of golf ballsand sat down next to a beautiful blonde.
The puzzled blonde kept looking at him and his bulging pockets.Finally, after many such glances from her, he said, "its golf balls"
.Nevertheless, the blonde continued to look at him for a very long time,deeply thinking about what he had said.After several minutes, not being able to contain her curiosity anylonger, she asked,
"Does it hurt as much as tennis elbow?"