When your homie buys you a strap on and you each fuck your girlfriend while the strap on is attached to homies ass and he’s fucking you

The phenomenon of having to come out as bisexual to the same person/people repeatedly because they assumed or hoped that your sexuality was a "phase." Refers less to the holiday and more to the 1993 Bill Murray comedy film in which the main character experiences the same day over and over.

A sexual position involving the male sitting on a bed, chair, or other flat surface, with the woman on top. In one of her hands, she holds a self-pleasuring device a couple inches below her rectum. As she drops off the man's penis, she falls onto the device. Upon lifting off the device, she is back on the man, thus the seesaw-like motion.

Addendum: Having a second male can substitute device.