Question: What character in the thirteenth season on South Park has a name that is a play on the confection butterscotch?

Context paragraphs:
South Park (season 13): The thirteenth season of "South Park", an American animated television comedy series, originally aired in the United States on Comedy Central between March 11 and November 18, 2009.  The season was headed by the series creators Trey Parker and Matt Stone, who served as executive producers along with Anne Garefino.  The season continued to focus on the exploits of protagonists Stan, Kyle, Cartman, Kenny and Butters in the fictional Colorado mountain town of South Park.

Pee (South Park): "Pee" is the thirteenth season finale of the American animated television series "South Park".  The 195th overall episode of the series, it originally aired on Comedy Central in the United States on November 18, 2009.  In the episode, the boys visit Pi Pi's Splashtown waterpark, where so many people urinate in the pools that the entire park becomes engulfed in tsunamis of urine.

Fatbeard: "Fatbeard" is the seventh episode of the thirteenth season of the American animated television series "South Park".  The 188th overall episode of the series, it originally aired on Comedy Central in the United States on April 22, 2009 and in the United Kingdom on April 24, 2009.  It was the mid-season finale, marking the final "South Park" episode for six months.  In the episode, Cartman misinterprets news reports about piracy in the Indian Ocean to mean the return of the classic era of swashbuckling pirates, and misleads a handful of South Park boys to voyage to Mogadishu to start a pirate crew.

Butters' Bottom Bitch: "Butters' Bottom Bitch" is the ninth episode of the thirteenth season of the American animated television series "South Park".  The 190th overall episode of the series, it originally aired on Comedy Central in the United States on October 14, 2009.  In the episode, Butters pays a girl $5 to give him his first kiss, which prompts Butters to start his own "kissing company" and eventually become a pimp.

Pinewood Derby (South Park): "Pinewood Derby" is the sixth episode of the thirteenth season of the American animated television series "South Park".  The 187th overall episode of the series, it originally aired on Comedy Central in the United States on April 15, 2009 and in the United Kingdom on April 17, 2009.  In the episode, Randy helps Stan cheat in a pinewood derby race, which inadvertently leads to the discovery of alien life.  When an alien gangster visits South Park and the residents come into possession of his stolen "space cash", they decide to keep it for themselves and hide it from alien police officers who are looking for it.

American Idol (season 13): The thirteenth season of "American Idol", styled as American Idol XIII, premiered on the Fox television network on January 15, 2014.  Ryan Seacrest returned as host for his thirteenth season.  Keith Urban was the only judge from the twelfth season to return.  Former judge Jennifer Lopez, who returned after one season absence, and Harry Connick, Jr. joined the judging panel following the departures of Mariah Carey, Nicki Minaj and Randy Jackson.

Eat, Pray, Queef: "Eat, Pray, Queef" is the fourth episode of the thirteenth season of the American animated television series "South Park".  The 185th overall episode of the series, it originally aired on Comedy Central in the United States on April 1, 2009.  In the episode, the men and boys of South Park become infuriated when the fart-joke oriented "Terrance and Phillip" show is replaced with the "Queef Sisters", a show devoted to queef jokes.  The women and girls of South Park accuse them of holding a sexist double standard when it comes to women queefing and men farting.

South Park Let's Go Tower Defense Play!: South Park Let's Go Tower Defense Play!  is a 2009 video game based on the American animated television series "South Park", released on the Xbox Live Arcade service for the Xbox 360 video game console.  The game was developed by Doublesix in collaboration with South Park Digital Studios and Xbox Live Productions.  "Let's Go Tower Defense Play" is a tower defense game, with the added element of being a fast-paced action game as well.  Thus, players do not only build towers to eliminate destructive forces, but they also have to control multiple characters in order to successfully protect the town of South Park.  "South Park Let's Go Tower Defense Play!"  is the first "South Park" video game released after three early titles released between 1998 and 2000.

Dances with Smurfs: "Dances with Smurfs" is the thirteenth episode of the thirteenth season of the American animated television series "South Park".  The 194th overall episode of the series, it originally aired on Comedy Central in the United States on November 11, 2009.  In the episode, Eric Cartman becomes the reader of the elementary school announcements, and starts making politically charged accusations against student body president Wendy Testaburger The episode was written and directed by series co-creator Trey Parker, and was rated TV-MA L in the United States and M (as) in Australia.

Butters Stotch: Leopold "Butters" Stotch is a fictional character in the animated television series "South Park".  He is voiced by series co-creator Matt Stone and loosely based on co-producer Eric Stough.  He is a third- then fourth-grade student at the fictional South Park Elementary School.  Butters is depicted as more cheerful, sweet, naive, optimistic, gullible, and passive compared to the show's other child characters and can become increasingly anxious, especially when faced with the likelihood of being punished, which is usually just being grounded, of which he is extremely terrified.  As a result, he is often sheltered and unknowledgeable of some of the suggestive content his peers understand, and is also frequently the victim of abuse and manipulation by Eric Cartman.  His name is a play on the confection butterscotch.

Supporting paragraphs: Butters' Bottom Bitch Butters Stotch
Answer: Leopold "Butters" Stotch