What the heck

Used immediately when your network broke
Used when you had a fucking bad day

Network broke

Man: what the heck?!

Example 2

Keybord stopped

Man: WHAT THE HECK!

what the flipping heck

A substitute for what the f****** h***.

Person 1:You just swore.
P2:No, I didn't.
P1:Yes you did.
P2:I said what the flipping heck!