eat your shirt
When you say or do something so dumb that everyone in the room loses their minds and wants to throw things at you.
My homie said he’d eat a whole pizza for breakfast. I said, 'Bro, you’re gonna die.' He said, 'I’m already dead.'
At the party, my cousin tried to rap and failed. Everyone laughed so hard they cried.
My teacher asked me what 'inconceivable' meant. I said, 'That’s a word?' She said, 'That’s a crime.'