To have sex with 4 different women 20+ years older than your current age 4 days or nights in a row. It is called "The Cougar Slam" as a reference to baseball for when you hit a grand slam you score 4 times in a row.
"I can't believe Tyler completed The Cougar Slam. I thought it was it was impossible."
by Joseph Smith, Mormon Savior December 02, 2009