Mr. Hankey

Mr. Hankey the Christmas Poo is the Christmas deity of South Park, taking the place of others, such as Frosty or Rudolph, and a jolly Poo that visits anyone on Christmas that has a lot of high fiber in their diets. He resides in the sewers beneath South Park, and therefore has been known to appear as if by magic from out of toilet cisterns, bringing with him tidings of joy, and a ghastly smell.

Background
Mr. Hankey made his first appearance in "Mr. Hankey, the Christmas Poo" and was seen as generally unknown to the other characters besides Kyle Broflovski and Jerome "Chef" McElroy, but after the episode's events he was popularized and by "Merry Christmas Charlie Manson!" there are several TV specials about him and he even takes a more Santa-esque role at malls, but he makes no actual physical appearance in the episode. In "Chef's Chocolate Salty Balls" the boys meet him in the sewer and he explains how the Hollywood people, led by Robert Redford were destroying the ecosystem. Kyle's and his calls are ignored and turned into a movie starring Tom Hanks called "Mr. Hankey and Me", and Mr. Hankey eventually dies. Using Chef's Chocolate Salty Balls to revive him, he uses poo magic to get rid of Redford.

Mr. Hankey hosts "Mr. Hankey's Christmas Classics", which features a new rendition of his theme song. He returns for "A Very Crappy Christmas" he has a wife named Autumn with a severe drinking problem, and three kids (one of which was born with a peanut in his head) and he helps the boys make their Christmas short. He reappears briefly in "Red Sleigh Down" he has a poo-choo train. This was his final appearance in the series until "201" when he is revealed to have orchestrated the previous episode's plot to hide Santa Claus in a Bear costume instead of Muhammad.

He is also mentioned in "Pre-School" by Trent Boyett.

He also appeared in "I Should Have Never Gone Ziplining", where he was seen rescuing the boys from extreme boredom on the boat they were on. He took them away in his magical "Helicrapter". After travelling so far, Hankey took the boys further on his "Seven Turdy Seven". From there, Hankey took the boys home on an hour long ride on the Poo-Choo Express.

Concept and Creation
According to "Goin Down To South Park", Mr. Hankey was inspired by an event that happened to Trey Parker - as a child, he had the habit of not flushing the toilet; because of this, Trey's dad told him that if he didn't flush the toilet, Mr. Hankey would come out and eat him. He and Matt Stone originally conceived a South Park-like show, where Mr. Hankey was going to be the main protagonist, with Stan, Kyle, Kenny and Cartman being secondary characters, which was called The Mr. Hankey Show. They pitched it to Fox Broadcasting Company executive Brian Graden, but he rejected it and said, according to Stone, "I'm not putting poo on my network". Parker and Stone later adapted their original idea into South Park.

List of Vehicles
Mr. Hankey can be seen utilizing several vehicles, usually constructed entirely out of feces and having names with various synonyms for feces.

Poo-Choo Express
The Poo-Choo Express is a locomotive constructed out of feces and is Hankey's most prominent vehicle. If first appeared in "Red Sleigh Down", where it was used to take Cartman and the boys to the North Pole to see Santa Claus. Although Cartman seemed to be oblivious to the stench of the feces constructed train, Stan and Kyle were disgusted by it. The locomotive appears to be able to lay down its own tracks, also out of feces, which would indicate that it can travel anywhere.

The Poo-Choo Express makes a return in "I Should Have Never Gone Ziplining", where it was seen briefly as the last vehicle Hankey used to take the boys home.

Magical Helicrapter
The Magical Helicrapter is a small helicopter made almost entirely out of feces. After Kenny dies of boredom on the boat in "I Should Have Never Gone Ziplining", Hankey rescues the remainder of the boys and takes them on a ride in the Helicrapter. Although the Helicrapter is almost all feces, the boys seem unphased by the stench.

Seven Turdy Seven
The Seven Turdy Seven, also seen in "I Should Have Never Gone Ziplining", is a large aircraft also built out of fecal matter. The name is a reference to a similar aircraft by Boeing, which is designated the 737. Its appearance, however resembles the Boeing 747, a long range aircraft with four engines and an upper deck. This vehicle was used during the boys' trip home with Mr. Hankey.

Appearance
Mr. Hankey appears as a piece of poo with 3 major sections, or lumps. He typically wears a Santa hat and white mittens.

Trivia

 * A song entitled "Mr. Hankey, the Christmas Poo" was released on CD and cassette, alongside the song, "Simultaneous".
 * Mr. Hankey first appeared in the intro for the "The Unaired Pilot. His first series appearance was in "Mr. Hankey, the Christmas Poo".
 * Mr. Hankey was actually intended to be a sailor, this has been mentioned in the South Park Commentary of "Mr. Hankey, the Christmas Poo". Mr. Hankey is actually seen in his original sailor form in the original intro from the "The Unaired Pilot" and "Damien"
 * Mr. Hankey is also an item in the game South Park Rally and the online game South Park: Big Wheel Death Rally.

Prominence

 * "The Unaired Pilot"
 * "Mr. Hankey, the Christmas Poo"
 * "Damien" (cameo)
 * "Mecha-Streisand" (cameo) - He appears on a newspaper Mr. Garrison is reading.
 * "Chef's Chocolate Salty Balls"
 * "Merry Christmas Charlie Manson!" (cameo)
 * South Park: Bigger, Longer & Uncut (cameo)
 * "Mr. Hankey's Christmas Classics"
 * "A Very Crappy Christmas"
 * "Red Sleigh Down"
 * "Pre-School" (mentioned only)
 * "201"
 * "I Should Have Never Gone Ziplining" - Rescues the boys from boredom on the boat.