Benny Levy has been regularly getting bad headaches so he goes to see Dr. Minky. And after a thorough examination, Dr Minky tells Benny, "I'm sorry to have to tell you this, but in order to eliminate your regular headaches, you'll need to undergo an Orchidectomy. If you don't know what this is, it's the removal of your testicles."

Benny immediately cries out,"Oy Veh ... I can't believe this is happening to me."

A few days later, Benny has the operation. And not too surprisingly, during his recovery, he becomes very moody. So his family buys him some gift tokens and suggests that when he leaves hospital, he could use them to buy some nice new clothes to help lift his mood. 

The following week, Benny visits an up-market menswear shop in Golders Green and begins by looking at some elegant shirts he could wear for work. As soon as the shop's manager sees Benny holding up and looking closely at a shirt, he goes over to him.

"Good morning sir," says the manager. "What size of shirt are you looking
for?"  Benny replies, "I’m a size 16 and always have been a size 16."

"But sir," says the manager, "looking at you now, you seem to be a size 16 3/4. And if you insist on wearing a size 16, you’ll very likely have some nasty headaches to contend with!"

 Oy veh: Oh woe is me; oh what sadness / misfortune