Granny Klondike

When you have anal sex or practice any form of ass play with an elderly woman and she inadvertently releases her bowels, creating a "gold rush".

"When I was fucking your grandmother last night she got so excited that she shat herself and gave me the best Granny Klondike of my life!"

"What would you do for a Klondike Bar?" "I'd fuck your gran until she fucking shat herself."