Macaroni Yellow - A yellow crayon so bad it makes your brain feel like it's be

A yellow crayon so bad it makes your brain feel like it's been boiled and your eyes start to bleed.

I drew a sun with Macaroni Yellow and now my head hurts.

My teacher made us use Macaroni Yellow and I failed art.

I looked at Macaroni Yellow for five minutes and my dog ran away.