hell if I know

all hell breaks loose

The situation becomes chaotic or characterized by conflict or rage.

as you know

as it is already known.

catch hell

To be severely reprimanded, punished, or beaten.

cold day in Hell

The time of occurrence of an event that will never happen.

come hell or high water

Regardless of the hardships; no matter what difficulties may arise.

forty minutes of hell

The NCAA strategy of playing a suffocating full-court press and aggressive offense for the entirety of a game.

fuck if I know

I have no idea whatsoever

fucking hell

An exclamation of great surprise.