A now popular occurrence describing the phenomenon of a group of people flipping an emphatic bird at the same moment, often at the mere sound of 45’s voice.
If an equation has two unknowns, such as 2y + x = 20, it cannot have unique solutions. Two unknowns require two equations which are solved at the same time (simultaneously) − but even then two equations involving two unknowns do not always give unique solutions.
This gives us a 'simultaneous equation'
Feeling what he knew would be her final orgasm of the night, he joined her, in perfect sync, and they fell into a state of simultaneoussnoregasm, neither of them stirring until sunrise.
When you and your friend notice an attractive person at the same time and therefore must battle over who gets to introduce them self first. Usually occurs at party, bar, or similar scene where you are trying to pick up a babe (male or female).
This occurs when one has dual dirty buttholes, two hands, and two pieces of toilet paper (preferably clean) and uses one hand to wipe each of the dirty buttholes (one hand per hole, NO SWITCHING!); one hand wiping in a circular motion, the other in straight lines (front to back or side to side, not both), thus achieving simultaneous ambidextoral coordination.