step on
v. phr.— «Heroin often is white powder heroin, which in many cases has been “stepped on,”” or cut, so many times that the “high” is weak.…“Black tar” heroin…not surprisingly looks like black tar and is harder to “step on.”» —“Huntington’s Heroin Habit” by Tony Seaton Huntington News (West Virginia) Jan. 25, 2008. (source: Double-Tongued Dictionary)
Further reading
Jacuzzi and silhouette are eponyms — that is, they derive from the names of people. An Italian immigrant to California invented the bubbly hot tub called a jacuzzi. And the word silhouette commemorates a penny-pinching treasury secretary who lasted...
Some college students are using the word loyalty as a synonym for monogamy. Are the meanings of these words now shifting? Plus, a biologist discovers a new species of bat, then names it after a poet he admires. Also, warm memories of how a childhood...