The Geriatric 

A sexual act; preferably with an aging recipient. When a man is receiving oral sex from a woman/man, he pulls his penis out of her/his mouth at climax, and at the same time the recipient removes her/his dentures. The man ejaculates onto the dentures and proceeds to place them back into his partner's mouth.

"Sweetie, we ran out of Poligrip. Will you run to the store and pick some up for me?"
"The car is out of gas dear. We can always try The Geriatric to have them temporarily hold until tomorrow."
"Good thinking Sweetie. Let's get a move on into the bedroom- we sure don't want to be late for the early bird special!"

The Geriatric by FMA.memories.PSU September 29, 2011