When it comes to joining Facebook affinity groups, grammar lovers have lots of choices. Take, for example, the group whose motto is "Punctuation saves lives." It's called  "Let's Eat Grandma!'" or "Let's eat, Grandma!" Martha and Grant talk about their favorite tongue-in-cheek Facebook groups for grammar lovers. Also this week" when to use apostrophes, whether to distinguish between bring and take, and the difference between a murphy and a wedgie.

Ever notice how you can sing the lyrics of "Amazing Grace" to the theme from "Gilligan's Island" -- or for that matter, to "The House of the Rising Sun"? Turns out there are many more examples of this. Is there a word for this musical phenomenon?

A Connecticut listener says her Generation Y friends make fun of her when she describes something happening in fits and starts. Is it that antiquated a phrase? Where does it come from, anyway?

Quiz Guy Greg Pliska has a quiz about famous trios. Try this one: "Steve Martin, Martin Short, and ___________?"

If someone gives you crazy props or mad props, they're congratulating you. A Chicago college student wants to know what props means in this context.

What's the difference between bring and take?

When someone grabs your underwear from behind and gives it a good, vertical yank, it's called a wedgie. A caller knows that term, but wonders whether and how a wedgie differs from a murphy or a melvin.

Grant quizzes Martha about the meaning of several rhyming verb and noun phrases: cuff and stuff, the cherries and blueberries, chew and screw, eat it and beat it, and flap and zap.

A Lawrenceville, Georgia, woman wonders: If chalkboards go the way of the buggy whip, what simile will replace the expression nails on a chalkboard?

Grant answers a listener's email question about the meaning of the musical phrase chicky-wah-wah.

A caller from Veroqua, Wisconsin, is fascinated by hoarfrost and wonders about the origin of its name. Grant explains its relation to the English term hoary.

The mother of a boy named Hendrix wonders how to punctuate the possessive of his name. Should she add an apostrophe or apostrophe with an "s"? Hendrix' or Hendrix's?

When it comes to joining Facebook affinity groups, grammar lovers have lots of choices. Take, for example, the group whose motto is "Punctuation saves lives." It's called  "Let's Eat Grandma!'" or "Let's eat, Grandma!" Martha and Grant talk about their favorite tongue-in-cheek Facebook groups for grammar lovers. Also this week" when to use apostrophes, whether to distinguish between bring and take, and the difference between a murphy and a wedgie.

Ever notice how you can sing the lyrics of "Amazing Grace" to the theme from "Gilligan's Island" -- or for that matter, to "The House of the Rising Sun"? Turns out there are many more examples of this. Is there a word for this musical phenomenon?

A Connecticut listener says her Generation Y friends make fun of her when she describes something happening in fits and starts. Is it that antiquated a phrase? Where does it come from, anyway?

Quiz Guy Greg Pliska has a quiz about famous trios. Try this one: "Steve Martin, Martin Short, and ___________?"

If someone gives you crazy props or mad props, they're congratulating you. A Chicago college student wants to know what props means in this context.

What's the difference between bring and take?

When someone grabs your underwear from behind and gives it a good, vertical yank, it's called a wedgie. A caller knows that term, but wonders whether and how a wedgie differs from a murphy or a melvin.

Grant quizzes Martha about the meaning of several rhyming verb and noun phrases: cuff and stuff, the cherries and blueberries, chew and screw, eat it and beat it, and flap and zap.

A Lawrenceville, Georgia, woman wonders: If chalkboards go the way of the buggy whip, what simile will replace the expression nails on a chalkboard?

Grant answers a listener's email question about the meaning of the musical phrase chicky-wah-wah.

A caller from Veroqua, Wisconsin, is fascinated by hoarfrost and wonders about the origin of its name. Grant explains its relation to the English term hoary.

The mother of a boy named Hendrix wonders how to punctuate the possessive of his name. Should she add an apostrophe or apostrophe with an "s"? Hendrix' or Hendrix's?