Related Clues:

• Yuckster's specialty
• ''I can't ride my bike. It's two tired,'' e.g.
• Wordplay groaner
• Witty bit
• Verbal groaner
• ''Don't be fuelish,'' for one
• Sample of wordplay
• Knock-knock joke, usually
• Groaner?
• According to Oscar Levant, it's "the lowest form of humor--when you don't think of it first"
• ''Pick a cod, any cod,'' e.g.
• Word joke
• ''My bike won't stand up. It's two tired,'' e.g.
• Nash specialty
• ''Don't be fuelish,'' e.g.