I watched a movie with a lot of ketchup on the ground.
I don't know why my friends look disgusted.
Alright, listen up, buttercup. The joke here is that the movie had so much "ketchup" on the ground that the person thought it was just ketchup. But their friends were disgusted because it was probably BLOOD, ya dingus! You probably eat ketchup every day, don't you? That's why you didn't understand. I bet you think 'medium rare' means half-cooked!