Mmm...

Mmm is one of Homer's catchphrases which he uses often when he tastes something tasty. Homer usually utters "Mmm, doughnuts" and then a hunger sound is heard.

There's No Disgrace Like Home

 * Mmm... marshmallows.

Bart the General

 * Mmm... cupcakes.

Krusty Gets Busted

 * Mmm... chocolate.
 * Mmm... double chocolate. (gasp) New flavor, triple chocolate!

Bart Gets an F

 * Mmm... beer.

Bart's Dog Gets an F

 * Mmm... maca-ma-damia nuts.

War of the Simpsons

 * Mmm... horse-doovers (hors d'oeuvers)

Stark Raving Dad

 * Mmm... pancakes.

Mr. Lisa Goes to Washington

 * Mmm... money.

When Flanders Failed

 * Mmm... barbecue.

Homer Defined

 * Mmm... purple.

Treehouse of Horror II

 * Mmm... sprinkles.
 * Mmm... spaghetti.

Lisa's Pony

 * Mmm... beer.
 * Mmm... salty.

Burns Verkaufen der Kraftwerk

 * Mmm... the Land of Chocolate.

Radio Bart

 * Mmm... chocolate.

Lisa the Greek

 * Mmm... crumbled-up cookie things.

Homer Alone

 * Mmm... strained peas.

Homer at the Bat

 * Mmm... donuts.
 * Mmm... potato chips.

Dog of Death

 * Mmm... snouts.
 * Mmm... fattening.

Itchy and Scratchy: The Movie

 * Mmm... burger.
 * Mmm... Soylent Green.

New Kid on the Block

 * Mmm... shrimp.

Lisa's First Word

 * Mmm... hog fat.

Homer's Triple Bypass

 * Mmm... ham.

Marge Vs. the Monorail

 * Mmm... chicken

Brother from the Same Planet

 * Mmm... grapefruit.

Duffless

 * Mmm... Gummi Beers

Last Exit to Springfield

 * Mmm... organized crime.

So It's Come to This: A Simpsons Clip Show

 * Mmm... beer.
 * Mmm... chocolate.
 * Mmm... nuts.

Whacking Day

 * Mmm... beer.

Marge in Chains

 * Mmm... pi.

Krusty Gets Kancelled

 * Mmm... delicious.

Rosebud

 * Mmm... 64 slices of American cheese

Treehouse of Horror IV

 * Mmm... forbidden donut.

Marge on the Lam

 * Mmm... invisible cola.
 * Mmm... candy.

Boy Scoutz N the Hood

 * Mmm... free goo.
 * Mmm... apple.
 * Mmm... hamburger.

The Last Temptation of Homer

 * Mmm... Marge.
 * Mmm... foot long chili dog. (Homer & Mindy)

Deep Space Homer

 * Mmm... mediciney.

Homer Loves Flanders

 * Mmm... sacrilicious.

Bart Gets an Elephant

 * Mmm... elephant fresh.
 * Mmm... caramel.

Another Simpsons Clip Show

 * Mmm... chocolate.
 * Mmm... invisible cola.
 * Mmm... forbidden donut.
 * Mmm... sacrilicious.
 * Mmm... snouts.
 * Mmm... free goo.
 * Mmm... something.

===And Maggie Makes Three
 * Mmm... bowling fresh.
 * Mmm... urinal fresh.

Homer Vs. Patty and Selma

 * Mmm... slanty.

A Star Is Burns

 * Mmm... beer nuts.

The Springfield Connection

 * Mmm... incapacitating.

Treehouse of Horror VI

 * Mmm... unprocessed fishsticks.
 * Mmm... sprinkles.

Scenes from the Class Struggle in Springfield

 * Mmm... open-faced club sandwich.

A Fish Called Selma

 * Mmm... pointy.

Season 8
None!

Lisa's Sax

 * Mmm... re-circulated air.

Simpson Tide

 * Mmm... donuts.

Das Bus

 * Mmm... memo.

Dumbbell Indemnity

 * Mmm... me.

Bart, the Mother

 * Mmm... loganberry.

Mom and Pop Art

 * Mmm... hippo.
 * Mmm... split peas with ham.

Thirty Minutes Over Tokyo

 * Mmm... fifty-dollar pretzel.

Eight Misbehavin'

 * Mmm... ovulicious.

The Mansion Family

 * Mmm... Danish.

Treehouse of Horror XI

 * Mmm... sugar walls.
 * Mmm... fish.

Lisa the Treehugger

 * Mmm... donuts.

HOMR

 * Mmm... hug.

Simpson Safari

 * Mmm... turbulent.

Treehouse of Horror XII

 * Mmm... various eggs.
 * Mmm... unexplained bacon.

Hunka Hunka Burns in Love

 * Mmm... pistol whip.

Homer the Moe

 * Mmm... curds. (Michael from REM)

She of Little Faith

 * Mmm... pie pants.

Treehouse of Horror XIII

 * Mmm... donuts. (Homer clones simultaneously)

Bart Vs. Lisa Vs. the Third Grade

 * Mmm... feed.

The Great Louse Detective

 * Mmm... steamed gentile.

Special Edna

 * Mmm... trophy.

The Dad Who Knew Too Little

 * Mmm... McNuggets.

Pray Anything

 * Mmm... farfetched.

'Scuse Me While I Miss the Sky

 * Mmm... promo.
 * Mmm... bad eggs.

Seasons 15-18
None (?)

Treehouse of Horror XVIII

 * Mmm... developed by.

Husbands and Knives

 * Mmm...pork pie.