There are a lot of words that can be used to describe anger and frustration of certain types. This is a placeholder for them. Take your pick.
(But don't write them here. We should at least maintain the appearance of civility.)
Spock called them ColorfulMetaphor? s.
In one of his ARM stories, LarryNiven described in passing how an era of oppressive government had caused "censored" itself to be an obscene term.
The MetasyntacticVariables "foo" and "bar" originated from the expletive-including "fubar" (Fsck'd Up Beyond All Recognition)
See also FakeCussWord; perhaps (EditHint) this page ought to be merged with that one, as FakeCussWord has far more content...