Meriwether wrote the plays Heddatron (2006), The Mistakes Madeline Made (2006) and Oliver Parker! (2010).
In 2010, she wrote an episode of Adult Swim's Childrens Hospital.
Meriwether wrote the 2011 romantic comedy film No Strings Attached, directed by Ivan Reitman and starring Natalie Portman and Ashton Kutcher. The film's working title was Fuckbuddies.
Meriwether is part of 'The Fempire', a group of female screenwriters that includes Dana Fox, Diablo Cody and Lorene Scafaria. In 2012, the Fempire received the Athena Film Festival Award for Creativity and Sisterhood at Barnard College in New York City.
In 2013, she signed a multi-year overall deal with 20th Century Fox Television, to develop additional projects for the studio.
The show, New Girl, was greenlit in 2011 with an initial order of 13 episodes and Zooey Deschanel in the title role. The show has so far aired 138 episodes over six seasons, with a seventh and final season of eight episodes to premiere April 10, 2018. It has been well-received by critics and nominated for a number of awards, including five Golden Globe Awards and five Primetime Emmy Awards.
