This is an introduction to taboo expressions in ASL. Several word-formation processes are exploited in coining ASL taboo-terms, most also exploited by non-taboo terms. Further, ASL taboo terms are both entrenched and clever (sometimes humorous). This is expected if the entrenchment vs. evanescence of slang and taboo terms in sign languages is affected by the same (or similar) factors relevant to slang and taboo terms in spoken languages.