The sexual act of when a grandmother (or any woman over the age of 70) penetrates you with a strap on filled with icing and when she deems it appropriate, she squirts the icing into whatever orifice she is penetrating.
"For this Thanksgiving I totally plan on running through a retirement home and getting Granny pied!"
"Oh sick, what kind of icing?"
"That sweet sweet vanilla my broski!"
"Oh sick, what kind of icing?"
"That sweet sweet vanilla my broski!"
by Tungsten Pimp November 24, 2023
Get the Granny Piemug.