Related Clues:

• Tom Lehrer anti-censorship song
• Dirty matter
• Blue stuff
• Plant fungus
• Dirty magazines and such
• Explicit stuff
• Erotica, less generously
• Salacious material
• Great literature it's not
• Net Nanny target
• Sooty stuff
• Larry Flynt's stock-in-trade
• X-rated material
• Filthy material
• Maize blight