filthy stuff
n.— «Clemens, from the Houston suburb of Katy, is his acknowledged heir with 300 wins, 4,000 strikeouts and a nasty disposition, still dealing “filthy” stuff and still intimidating hitters at age 41.» —“The Arm And The Man” by Dan Mcgrath Chicago Tribune Sept. 7, 2003. (source: Double-Tongued Dictionary)