McNasty

1.something really gross or completely disgusting,

dood:i went to the bathroom and someone had sharted all over the seat, i don't think he made it!

Dood2:AWW bro! that is so McNasty

by k_u August 15, 2008

McNasty

A horrible and disgusting form of diarrea that fills the whole toilet with its volume and the whole house with its odor; is usually due to consumption of fast food or drinking lots of alcohol the night before.

"Dude, why are you clutching your stomach with one hand and covering your ass with the other?"

"Fuck, I knew I shouldn't have mixed rum with pabst with gin with taco bell with a big mac last night, now I have to take the biggest McNasty known to man."

by Danny Sin April 16, 2007

McNasty

Too be excetionally nasty, grimy, or just down right dirty.

Joe has a very McNasty swag.

by swagmarket October 30, 2009

McNasty

A burger from a guy in the McDonalds parking lot that has a load of cum on the meat

What the Fuck, he gave me a McNasty

by Bakken March 03, 2009

McNasty

Someone Who Does it with your ex.. you think shes ugly but shes really pretty but just a rebound girl

Christina-OHH he did it with Mcnasty
Meredith- Yup

by Greys anatomy Fan October 29, 2011

McNasty

when you force feed someone a big mac while raping them

he mcnastyed that trick ass bitch

by Lemony Petaphile June 03, 2008

The McNasty

Cutting someones head off and skullfucking it.

Yo did you hear TheDooo went to jail?
No, why?
Cuz the idiot did The McNasty

by GoonGrizzy October 17, 2020