BillVallier's definitions
To have successfully had sexual intercourse with 3 generations of a single family.
Most commonly accomplished with a daughter, mother, and grandmother.
Most commonly accomplished with a daughter, mother, and grandmother.
I thought pulling off the roommate switch was tough, but can you believe George pulled off the trifecta with the Andersons?
by BillVallier September 11, 2012
Get the trifectamug.