to have already ate food. or to have eaten already.
No I don't wanna go to Mc Donalds because I have already aten
see ass, moron, fuckshit, cocbite, dumbass
orginates from a high school in northern CO where the principal attempted to silence an online protest, resulting in the pissing off of many ppl.
to be used as an insult, meaning to be a moronic nub of a dumbass
jeez, jimmy's bein such an aten