Mach is the measurement according to the speed of light. In 2018, studies showed that 90% of teens learned the word from 'The Flash' and the other 9.7% learned it from the classic "Yo momma so fat her stomach grows at the rate of mach 4. The last .2% can't do math. The word is commonly used as a replacement from the term 'Light-o-meters' because the prhase upset the military task force in charge of greeting the Light side.
I" believe you can't even run a mach, Caitlyn." "Well sucks for you Barry she doesn't have super speed!"
by K8isGr8M8 August 7, 2017

by Error Gaming June 13, 2023

by Samoplush January 13, 2021

Stemmed from an inside joke about Pizza Tower, "Mach Finger Butthole" Is a nonsense term referring to a rambunctiously high speed.
by ZynexGD December 10, 2024

Ich mach dich pepsi! Is a german expression used when you are on your way killing someone in a video game.
by Schloch December 13, 2022

A conjunction of two words; one, Yiddish, the other, Hebrew; A female who fakes the persona of a caring, pleasant, and outstanding individual who could "do no wrong", when, in actuality, said individual is a witch.
by JWR Eitor in Chief July 15, 2025

by Jeff Murray May 5, 2005
