You Are What You Eat

My friend called me a dick earlier. I said, "You are what you eat." He then proceeded to run away from me.

Explanation

Explain Bear

Listen, you absolute cabbage, your friend called you a dick, which is not nice. Then you said a classic line, "You are what you eat", which implied your friend eats dicks. Then he ran because that would be very awkward. It's a pretty simple concept. Is that clear enough for you?