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___ de Leon (waggish explorer), 4 letters
Sanity clause and others, 4 letters
Causes of grins and groans, 4 letters
Grammatical witticisms, 4 letters
Groan elicitors, often, 4 letters
Groan-inducing jokes, 4 letters
Groucho Marx specialties, 4 letters
Homophonic high jinks, 4 letters
Jokes that lead to groans, 4 letters
Knock-knock joke punchlines, 4 letters
Knock-knock jokes, essentially, 4 letters
Many conundrums have them, 4 letters
Many crossword puzzle themes, 4 letters
Many Groucho Marx quips, 4 letters
Most knock-knock joke punch lines, 4 letters
Ogden Nash specialty, 4 letters
Ogden Nash's wordplay, 4 letters
Paronomasia samples, 4 letters
Paronomastic collection, 4 letters
Plays, linguistically, 4 letters
Puzzle clues, sometimes, 4 letters
Several are in this puzzle, 4 letters
Some crossword clues, 4 letters
Some George Carlin jokes, 4 letters
Staple of Ogden Nash poems, 4 letters
They may cause groans, 4 letters
They may make your eyes roll, 4 letters
They often evoke groaning and eye-rolling, 4 letters
They're *supposed* to be corny..., 4 letters
Ups 'n' downs herein, 4 letters
You'll find some in this puzzle, 4 letters
Crossword writer, often, 7 letters
Joker who often elicits groans, 7 letters
Ogden Nash, notably, 7 letters
One skilled at wordplay, 7 letters
One who causes a lot of groaning, 7 letters