Mattschecking

The act of touching 2 prolapsed anuses together, like a kiss

Josh and Mike were bent over Mattschecking each other.

by Harrymanback November 23, 2013

Mattsims

Anorexic meth head with rotten teeth . Sexual deviant. Rides bike everywhere to look for drugs.

Dang! Did you see Amber with that meth head?

Ya. Hes a mattsims. They deserve eachother.

by Fancyface70 July 26, 2017

Phantom Mattson

Sneaking out of a party without telling anyone you are leaving.

Garth pulled a Phantom Mattson last night.

by Snow Day Pod January 16, 2019

matesurbating

Mutually masturbating a friend (mate)

Dude, did you hear? I walked in on Steve & Dave matesurbating

by neoDiggity August 3, 2010

Matt's First Law

Your car will be only be involved in an accident totaling it when all the following conditions are met:
1. You have a full tank a gas
2. You have recently had an oil change
3. You have 4 new tires

Some middle-age woman plowed into your car and totaled it. Matt's First Law applies.

by Matty M. G. January 11, 2011

Maths

M-mental
A-abuse
T-to
H-high school
S-students

What maths was really made for

by Yeah braaaaa May 16, 2016

mantsch

Another way to say mantra.

Its my mantsch when I'm riding to always use the best gear possible, bro.

by AAGB June 7, 2017