1 definition by Grillmasterg

"Syncing up" is achieved when two males and one female participate in the sexual act of an Eiffel Tower, or a three way, and both males achieve orgasm at the exact same moment. It is a very unique situation that has to be very intricately timed in order to simultaneously ejaculate, or to sync up.
Person 1: "Hey man what's the plan for tonight? Are you hanging with Jessica?"
Person 2: "Ahh idk bro, I'm just tryna sync up with one of the boys and I'm not sure if she's down."

*person 1 and person 2 fist bump*
by Grillmasterg June 17, 2017
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