- If you are looking for the vulgar term in the re-imagining, it is spelled frak.
"Frack" is a Colonial expletive, roughly analagous to "shit" or even the milder "rats" or "darn". Its subversive value, exploited far more extensively in the 2003 re-imagining, is that it sounds like a variant of "fuck", and in the latter series it actually conveys that meaning.
There are two main ways to spell the term, but "frack" is how it appears in the Writer's Guide, dated October, 2, 1978.
"Frack" appears only seventeen times in the original series. Most of the time, the expression is used by Starbuck.
"Frack!" is used once each in Saga of a Star World, Lost Planet of the Gods, Part I, Lost Planet of the Gods, Part II, The Gun on Ice Planet Zero, Part II, and Fire in Space. It is used twice in The Magnificent Warriors
"Holy frack!" is used once each in The Gun on Ice Planet Zero, Part I, The Magnificent Warriors, War of the Gods, Part I, Experiment in Terra and The Hand of God.
"Oh, frack!" is used twice in Lost Planet of the Gods, Part I and once each in The Long Patrol and Baltar's Escape. In Greetings from Earth, Boxey says, "Oh, frack," in a classroom where Athena is teaching a group of children, loudly enough for the entire room to hear, but there is no indication that he was punished or reprimanded.