M.A.C.K.

Stands for "Mario Ass Cheeks Konstructions". Is used to refer to something that is terrible or "Ass Cheeks". Mainly a type of building or rollercoaster.

Yo that rollercoaster really lookin' like it was made by M.A.C.K. amirite?

by Mario Ass Cheeks June 13, 2021

M.A.C.K.

Shirts, stickers, anything to do with music memorabilia or instruments that has M.A.C.K. stamped on it means

"MUSICIANS AGAINST CHAD KRUGER"

Man i love your shirt, whats it say? M.A.D.D.? no man, M.A.C.K., i hate Nickelback with a passion "MUSICIANS AGAINST CHAD KRUGER"

by i.l.s. October 08, 2009