An annual celebration day of uninterrupted marital sex. During this day, the husband and wife will enjoy wonderful, glorious, and continuous sex all day long. The couple will take off work and if they have kids, they will be sent to the grandparent's house for the day.
Psychologists say that over 75% of all married couples do not have enough sex which causes a majority of marital problems. The simple solution; June 22nd. This day was specifically picked because it is the longest day of the year.
Herschel, "I can't wait for June 22nd! It's going to be the best day of the year with my wife!"