Originally posted by ccmalo:
. . . probably because the f-word is colloquial for something rather pleasant . . .
Well, sort of. Until fairly recently, it had a strong implication of nasty/tawdry, and possibly even assault. In fact, the first time I heard it used in a "nice" manner, I was shocked. (Admittedly, I grew up pretty sheltered. I was at least 12 or 13 before I found out that "snafu"
didn't stand for System Normal, All Fouled Up.

)