The greatest possible amount that anyone could ever possibly miss anyone. Even greater than infinity, but not quite as great as infinity + 1 (everyone knows this is the greatest.)
by bizarroturtle January 19, 2009

A way to get the final and last word when your girlfriend tells you she loves you most. I.E. replacing " I love you times Infinity" Mostestest the end all be all to say I LOVE YOU the most!
by K Mac December 9, 2008

by moss mosss April 28, 2020

by oreosaresuperior September 12, 2019

by UltimateAssassin July 7, 2022

by Sheviee January 7, 2022

its an amount greater than anything. It is an amount that could not ever be measured. Not even infinity can beat the mostestest.
I love Michelle the Mostestest. Meaning My love for you is an unmeasurable amount of love and cannot be higher than anything in the world. "I love you the MOSTESTEST."
by Rene Ramirez December 25, 2007
