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(Interjection) The way that an ignorant dumbass says gracias.
You went and bought a case of cold brewskies just for me? Grassiass, man!
Grassiass by McCrapper July 19, 2012
Related Words

Grossnasty 

Grossnasty: The grossest, slimiest, nastiest of any residue or substance either in a bong, or otherwise that brings nausea just at the sight.
"That resin stuck to my fingers looks so grossnasty"
Grossnasty by freniferisland January 9, 2018

grossiosity 

the state of ultimate grossness and disgust.
a pimpleton has a lot of grossiosity and is retarded.
grossiosity by miss michele March 15, 2008

grassias 

A word used instead of "gracias" (thank you) in appreciation for being passed marijuana
Joe: Here ya go, want a hit?
Tom: Sure. Grassias amigo
grassias by tbrooks5789 September 29, 2013

Grosstastic 

Fantastically gross.
superbly nasty.
phenomenally grotesque...
eww... did you just sneeze on my face? Grosstastic!
Grosstastic by Superdeedzx3 July 7, 2011

Grossies 

Something that is completely disgusting. Often times it's said after someone releases a bodily function.
"Did you just fart?"
"Yeah, dude."
"Grossies."
Grossies by Gypsy_Kitty99 March 30, 2009