Orgasiversary

The day in which a couple (or one member of a couple) achieves their first orgasm together. This is typically during coitus or foreplay. Like the "bangday," a couple's orgasiversary may be celebrated monthly or annually. If each member's orgasm was achieved on a separate day, the couple may choose to celebrate two orgasiversaries, or to celebrate the day when they both achieved orgasm during the same encounter.