Three elderly grandmas were sitting on a bench outside a nursing home when an old grandpa walked by.
One of the grandmas called out:
Grandma:
“Hey! We bet we can tell you exactly how old you are!”
Grandpa:
“There’s no way you can guess my age!”
Grandma:
“Sure we can! Just drop your pants and underwear, and we’ll tell you your exact age.”
Embarrassed but determined to prove them wrong, the old man agreed.
The grandmas asked him to turn around a few times and then jump up and down several times.
He did exactly as they asked.
After taking a good look, all three grandmas said together:
Grandmas:
“You’re 87 years old!”
Standing there with his clothes around his ankles, the old man was amazed.
Grandpa:
“How in the world did you guess my age?”
The three grandmas slapped their knees, gave each other high-fives, and grinned from ear to ear.
Grandmas:
“We were at your birthday party yesterday!”