Simultaneous anal. Generally it involves two males, one of which inverts, and they both push their erect penises downwards, and then back into one another as to simultaneously penetrate one another.
by H$izzleM December 14, 2020
by Ricky and Danny September 30, 2005
By looking up this word you are simultaneous as in you learned something new and btw i was the first person to define this
by Pboy76 May 21, 2020
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.
Simultaneous trumpfinger, while watching the news, has become a family bonding experience in our household.
by Dr Bunnygirl September 15, 2020
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'
This gives us a 'simultaneous equation'
by rieazen September 09, 2014
by prague1 June 29, 2006