Unfortunately, due to a technical error (formerly known as a cock-up,) I have lost the reference manual on determining the exact meaning of words.
I will therefore have to make something up- pull something out of the hat as it were....
Gratoxi means 'have a nice day y'all.' Or does it?
It is a viral word first thought to have been used in California, by all those lovely toned and tanned people. The original meaning stems from grat, meaning gratitude- for looking me up and down, but I don't think so- do you? The second part means toxic, just like Miss Spears sang. (You will now have that tune in your head all day long now.) Simple translation:
Thanks, but get real you ugly muthafucka.
This has mutated into a quasi salutation of friendliness, roughly meaning, I may look friendly, but I'm still waiting for your butt to drop three feet any day soon.
G R A T O X I !