Definitions by SLE.

Fuck'nell 

The shortening of the two words "Fucking" & "hell".
This is commonly used in the South Wales Valleys as an expletive to exaggerate a situation or as a reaction to shocking news.

Valley kid: "I just unlocked the gatling-gun on Resi 5, boys."

Valley kid 2: "Fuck'nell"

Fuck'nell by SLE. May 6, 2009