Scrotum cap
To skin your/someone's scrotum and wear it as a swimming cap so when you/they jump into the water it shrinks and squeezes your/their head until it explodes. A person with strong autism is described as a scrotum cap.
Phan is such a scrotum cap.
You're going to get scrotum capped mate.
You're going to get scrotum capped mate.