s-word

Noun

 * 1)  The word shit, regarded as a vulgar or taboo word.
 * 2)  The word slut, regarded as a vulgar or taboo word.
 * 3)  The word spastic, regarded as an offensive or taboo word.
 * 4)  The word spic, regarded as a vulgar or taboo word.
 * 5) Any word beginning with s that is not normally taboo but is considered (often humorously) to be so in the given context; for example, socialism.