The use of a derogatory, offensive or vulgar word or phrase to replace a (more) neutral original.(noun)
A word or phrase that is used to replace another in this way.(noun)
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Use "dysphemism" in a sentence
"As euphemism, these clearly outdo themselves to the opposite extreme ( "dysphemism," as also in "greasy spoon" or "cancer stick")."
"For example, during the development and service period of the SR-71 Blackbird spy plane, engineers working for Lockheed Corporation at the Skunk Works used the term unobtainium as a dysphemism for titanium."
"“Disabled” is currently a neutral term, but it might have once had a euphemistic ring to it, and may one day become a dysphemism."