mach 

A mach is simply a knife. By implication, it's large.

A gat'll get you years. I carry a mach. I can blag it from the kitchen I work at.

mach by JoeJJ April 30, 2006

mach 

69mach1...Nonsexually... but as in the year of the Mustang.

I am going to save up my money and buy that yellow 69mach1 for $3500.

mach by rubyice September 20, 2005

mach 

Adj. (Mah-ch) To be full of machismo, to be macho, to be a tool. Is commonly used as a term to describe the actions of males who have very high testosterone levels and feel an obligation to demonstrate their manliness.

"You're acting really mach today."

mach by The G Master October 22, 2006

Mach 

Mach (noun) is a term one uses to describe a suspicious or illegal activity one is intending on doing.

Joe said “this dudes mach as fuck”

Billy said “yo man this place is pretty mach”

Mach by anonymous November 17, 2020

mach 

The act of performing sexual intercourse, with special g-force to boot - i.e. fucking hard and fast, deep and often continuously irrespective of number of times 'orgasm' is achieved.

(from Jay and Silent Bob Strike Back - Lol cunt)

"Fuck man, I was like maching this hot chick and she was all like tired, but we just kept maching cause we both knew it was something special ..."

mach by El_Gilbarto April 29, 2005

mach 

1) A replacement for the word bitch, this doesn't necessarily mean a "mach" is a bitch, a euphemism.

2) When used as a verb it also is used to replace, almost any word in context.

-Mach, Please.

-I was maching down the street.

mach by trexer36 June 15, 2010

Mach 

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!"

Mach by K8isGr8M8 August 7, 2017