When you fuck someone in tact with certain music.
And from BPM (beats per minute), it goes CPM (cums per minute).
You are like fucking metronome my friend, im proud of you.
Him: (With the song) Staying alive, Staying alive!
Her: A.. A.. A.. AAAAAAA!!!
Cameraman: Ou shit, you are using the metronomy very well! WOW
When your hooking up with a girl around Christmas and you take a candy cane and shove the large end up their vagina deep enough until the short end goes up her ass leaving her Christmasly shocked and smelling like peppermint.