Three mischievous old BLOND Grannies were sitting on a bench outside a nursing home. . .
. . . when an old Grandad walked by.
One of the old BLOND Grannies yelled out saying, "We bet we can tell exactly how old you are."
The old man said, "There is no way you can guess it, you old BLOND fools."
One of the old Grandmas said, "Sure we can! Just drop your trousers and underpants and we can tell your exact age."
Embarrassed just a little, but anxious to prove they couldn't do it, THE OLD dude dropped his drawers.
The BLOND Grannies asked him to turn around a couple of times, then jump up and down several times.
Then all together they said, "You're 87 years old!"
Standing with his pants down around his ankles, the old gent, amazed that they got it right, asked , "How in the world did you SNEAKY BLONDS guess ?"
Slapping their knees and grinning from ear to ear, the three old ladies happily yelled in unison... " YOU OLD FOOL We were at your birthday party yesterday!" YEP THEY WERE BLONDYS HDG
." 
and 
and we can tell your exact age." 
just a little, but anxious to prove 
. 
from ear to ear, 
HDG 