chuffing hell

Interjection

 * 1) A minced oath, an expression of dismay, disgust, anger, surprise etc.
 * Chuffin' hell! What were that?!
 * What the chuffin' hell are yer doin' 'ere?
 * What the chuffin' hell are yer doin' 'ere?

Usage notes
Less vulgar than fucking hell, or even bloody hell, more vulgar than chuffing heck.