“Abominable! Can you believe that? Do I look abominable to you? Why can't they call me the Adorable Snowman or.... or the Agreeable Snowman, for crying out loud? I'm a nice guy.”
The Yeti is a monster who worked at Monsters, Inc. until he got banished (presumably for tampering with mail) to the Himalayas. Despite this, he enjoys living in the human world.
When Mike and Sulley get banished to the wasteland in the Himalayas, they fought each other until the shadow of a huge and seemingly menacing figure appears. It shortly turned out to be the Yeti, who greets them and makes them feel comfortable in his cave while offering yellow snow cones (which he claims to be lemon-flavored). He also shows himself to be a comedian, such as when he mentions about his friend Bigfoot, who has called himself "King Itchy" to cheer up Sully, who still felt guilty about scaring Boo, the human girl that he has accidentally brought into the Monster World, during the scare simulator demonstration. When he mentions something about a local village, Sulley, still wanting to help Boo, suddenly demands the Yeti to tell if there are any kids in that village (which he did, saying that there are all kinds of kids there and that it takes a 3-day trip down the mountain to get to the village) so that he will be able to sneak back into the Monster World. However, the Yeti warns Sulley against going out in a blizzard, but Sulley does so anyway, saying that they need to get to Boo. When he got hit by a snow cone, the Yeti points out that Mike threw it, who throws the rest at him while berating him of what he did and how it will affect his record, though he dropped the last one when Sulley told him that the last part didn't matter anymore. Wanting to exit the heated argument and noticing that they were out of snow cones, the Yeti steps out to "make some more".
The Yeti is last seen carrying more snow cones (apparently what he said wasn't just an excuse) when Sulley slides past him on a sled. The Yeti calls out to Sulley that he has made more snow cones, but Sulley's already long gone.
The Yeti appeared at the end of the prequel Monsters University as a Monsters, Inc. employee who introduces Mike and Sulley (then new arrivals) to their jobs as mail sorters. He tells them not to mess with the mail or peek into them, as such acts are punishable by banishment, implying this was the reason he was banished later on.
The Yeti made a cameo appearance as a snowplow during the end credits, as part of a meta-joke about John Ratzenberger appearing in every Pixar movie as pointed out by Mack (who is also voiced by Rautenberg).
The Yeti (called the Abominable Snowman), Bigfoot, and the Loch Ness Monster were all mentioned earlier by Mike to have been banished from Monstropolis when he was telling Sulley about what the consequences of their actions for helping Boo might be, possibly referencing the supposed existence of the real-life versions of said monsters.
It is revealed in Monsters University that the Yeti was actually once a mail sorter at the Monsters, Inc. factory, but was banished to the Himalayas for accidentally messing up his job by tampering with the mail. This is also an homage to his voice actor's role as Cliff Clavin, the mailman in Cheers.
Despite previously working with Mike and Sulley, they do not seem to recognize each other in Monsters Inc. Their entire conversation seems to suggest that Yeti is just meeting Mike and Sulley for the first time. Though, since Mike mentioned him earlier in Monsters, Inc., it's likely they still do know each other but just decided not to point it out.
In an M.I. book, Mike, Sulley, Boo, and Celia take the Yeti back to Monstropolis. However, he decides to stay in the human world, anyway.
The Abominable Snowman was planned to appear in the first Disney Infinity game but got scrapped for unknown reasons.
Soundtracks:Soundtrack (Monsters, Inc.) • Soundtrack (Monsters University) Books:Disney's Wonderful World of Reading (Monsters, Inc.) • Little Golden Book (Monsters, Inc.) • Disney's Wonderful World of Reading (Monsters University) • Little Golden Book (Monsters University) Video Games:Monsters, Inc. • Monsters, Inc. Scream Arena • Monsters, Inc. Scream Team • Monsters, Inc. Scream Team Training • Mike's Monstrous Adventure • Disney Universe • Disney INFINITY • Kingdom Hearts III • Disney Emoji Blitz • Disney Heroes: Battle Mode
Monsters, Inc.: Laugh Factory • The Art of Monsters, Inc. • The Art of Monsters University • The Science Behind Pixar • Pixar in a Box • Oozma Kappa • Roar Omega Roar • Jaws Theta Chi • Slugma Slugma Kappa • Eta Hiss Hiss • Python Nu Kappa • Scare Games
Mater's Tall Tales:Rescue Squad Mater • Mater the Greater • El Materdor • Tokyo Mater • Unidentified Flying Mater • Monster Truck Mater • Heavy Metal Mater • Moon Mater • Mater Private Eye • Air Mater • Time Travel Mater Tales From Radiator Springs:Hiccups • Bugged • Spinning • The Radiator Springs 500½ Canceled Episodes:To Protect and Serve
Cars on the Road:Dino Park • Lights Out • Salt Fever • The Legend • Show Time • Trucks • B-Movie • Road Rumblers • Gettin' Hitched
Cars 2:You Might Think • Polyrhythm • Mon Cœur Fait Vroum (My Heart Goes Vroom) • Collision of Worlds • Nobody's Fool Cars 3:Run That Race • King's Highway • Glory Days • Ride Cars on the Road:Cars on the Road • TRUCKS Others:Free Ride • Welcome to Radiator Springs • Radiator Rock • Mambo Italiano • Stop in the Name of Love • Riding in My Car (Car Car Song) • Low Rider (Espanol Fantasma Mix) • Junkyard Jamboree • Big Bulldozer • Tow Mater (The One You Want to Call) • Mater's Square Dance • Let's Go Driving
Radiator Springs • Luigi's Casa Della Tires • Ramone's House of Body Art • Cozy Cone Motel • Fillmore's Taste-In • Flo's V8 Café • Mrs. Piston • Willy's Butte • Radiator Springs Curios • Radiator Springs Drive-In Theatre • Wheel Well Motel • London, England • Paris, France • Porto Corsa • Tokyo • California • Los Angeles International Speedway • Motor Speedway of the South • Ornament Valley • Big Ben • Top Down Truckstop • Big Bentley • Hollywood