eat shit verb 5exclamation 1forms 4 verb5 •(slang, vulgar) To fall and land on one's face.The sidewalk was icy, so I ate shit after leaving my house. •(slang, vulgar) To experience a catastrophic breakdown. •(slang, vulgar) To be soundly defeated.When he started insulting people's mothers, the bouncer made him eat shit. •(slang, vulgar) To do something disgusting or strongly undesirable. •(slang, vulgar) To do nothing of importance; to idle. exclamation1 •(vulgar) An expression of discontent or aggravation to another party.Eat shit! I’m not giving you any more money! formsate shit · eaten shit · eating shit · eats shit