Wiktionary
eat shit
interj. (context idiomatic vulgar English) An expression of discontent or aggravation to another party. vb. 1 (&lit eat shit English) 2 (cx slang vulgar of a person English) To fall and land on one's face.
Usage examples of "eat shit".
That had quickly wrapped up with the arrest of the kid's new girlfriend's ex, who had taken it personally that the kid had told him to eat shit and die.
Dropping his hands away from the lock and putting his lips to the door, he said 'Eat shit and die' in his clearest voice.
Again he expected a patented Eddie Dean outburst complete with phrases such as kiss my ass or eat shit and die.