eat the dick - The best way to end a conversation. It’s like the final word

The best way to end a conversation. It’s like the final word, and no one can argue back.

I asked why the sky is blue and my friend said 'eat the dick!'

My teacher asked me why I was late and I said 'eat the dick!'

My mom told me to clean my room and I said 'eat the dick!' and ran away.