If you don't get it, I'll explain it to you:
A gruff old Sergeant Major was at a posh ball one evening when an amazingly beautiful and sexy woman approached him.
"Hi, there, soldier," she purred.
"Ma'am," he stiffly replied.
"You seen a lot of women in the Army?" she asked, "I'm sure you pleased women every minute!"
The Sergeant Major thought about it and said, "Not really, ma'am, I haven't had sex since 1946."
"What!" She exclaimed, "well have to fix that!"
They proceeded to go to a quiet corner and do the deed.
Afterward, she turned to him and said, "Why did you wait so long to have sex?"
The Sergeant Major stared at her for a second.
"What do you mean?" he said, confused, "it's only 2210."