same as 'poo tash' . smelly top lip the smell that sticks with you for life but instead of been crusty particles from your ringpiece it is infact the cheesy smeg from your unclean Purple-headed Yogurt Slinger or for women their dirty fish taco!!
Eta tash is what a baby says when they eat trash. This usually happens if you are roleplaying as a baby in bloxburg with a group of friends and the person who owns the restaurant decides to throw the baby out of the restaurant and leave them with TRASH.
Noah: *throws baby out of restaurant*
Baby: eta tash yam yam yam.