“Heck” is actually an amalgam of Hell + Fuck. I just made “heck” far worse a fake cuss word than any actual cuss word.
Yes, I am a genius.
And of course, “full” is the reverse of “heck”. So when someone says “you’re full of it.” Them’s fightin’ words.
Aw shucks!
futile + suck =
Sutile? 
Don’t be taking my user name in vain this way . . . I’ll want to know what the heckity you’re up to 
Except that the word “heck” derives from a word in Middle English, hekke, which in turn was derived from an Old English word, hecc, and Fuck didn’t appear until early Modern English.
Come now, elfkin, you’re ruining it for everybody!
Shit + Fucks? I think so…
::pouts:: how often do you think things from my History Of The English Language class are ever relevant? It’s not like anyone cares about stuff like loan words or the great vowel shift.
Heck, as everyone knows, is a reference to the london-based nature of hell: Hounslow, Ealing, Chiswick, Kew.
D’aaaalright. I’ll admit, I was interested to know the etymology. I’ll let it slide this one time. And, FWIW, I care about the great vowel shift.