It is when you see your fat friend about to eat his big mac and in order to save him from assured and certain death from obesity, you decide to drive-by and slap it right out of his hands down to the ground as if you're performing the most vicous dunk in your life.
by Pinehawkjar June 19, 2017

I couldn’t believe it bro, not only did she let me smash, she let me Big Mac Slap my fat gut on her back
by Bigmacslapdaddy July 3, 2018

by mclamp_ May 16, 2021

Scooby doo at 3 am with the among us bigmac potion
otherwise known as A.N.R(Alexandra NO Rizz)
Acronym:BMSD
otherwise known as A.N.R(Alexandra NO Rizz)
Acronym:BMSD
Damn shut up or BMSD will haunt you tonight(RANDYYYY)
TESTICLES GAY TESTICLES
BIG MAC SCOOBY DOO scares the fuck out of my 2mm dick
TESTICLES GAY TESTICLES
BIG MAC SCOOBY DOO scares the fuck out of my 2mm dick
by anonymous April 28, 2023

The definition of "Big mac with cheese" is a insult also a comparison to a young teenager, Yob or chav because they stand outside mc donalads or jobcenter holding their genitalia talking about their super charged turbo 1.1 fiesta with a big bore exhaust, "ayye I lad " accent, Pure gas so they are "big" Wanna be macs "mac They are pathetic an greasy makes the "cheese"
by Master obi konobi May 22, 2012

by ms kbk April 18, 2017

A Carey Baptist College school yard fight which involved a fat idiot fighting a scrawny Asian retard. Shocking ending - the Asian retard won.
by Gagemdeep April 8, 2022
