The album's development was impeded by a dispute between Big Boi and his former label, Jive Records, over creative and commercial differences. Rooted in Southern hip hop, Sir Lucious Left Foot has been noted by music writers for its bounce and bass-heavy sound, layered production, and assorted musical elements. Its lyrics deal with boasting, sex, social commentary, and club themes, featuring Big Boi's clever wordplay and versatile flow.
Following a heavily delayed release, the album debuted at number three on the US Billboard 200, selling 62,000 copies in its first week, and spent 13 weeks on the chart. It also charted internationally and produced two singles, including the UK top-40 hit "Shutterbugg". Sir Lucious Left Foot received rave reviews from music critics, who praised its varied sound and Big Boi's lyricism, and was included in numerous year-end top albums lists. Big Boi promoted the album with an international tour in 2010. As of September 2010, it has sold 175,000 copies in the United States.
Released in August 2006, OutKast's sixth album Idlewild and the duo's musical film of the same name were met with a lukewarm reception from critics and audiences. Amid break-up rumors, Big Boi and André 3000 announced their hiatus as a duo and plans for individual career endeavours. Unlike their fifth album Speakerboxxx/The Love Below, which included a solo album by each member, his album and André 3000’s own solo album will be sold separately. They intend to continue work as a duo after each of their solo albums are released. Prior to working on his solo effort, Big Boi had occupied himself with managing his Purple Ribbon imprint label and several acting roles, including a supporting role as a drug dealer in the well-received, coming-of-age film ATL and the lead role as a rap mogul in the critically panned comedy film Who's Your Caddy?. In an interview with Vibe, he said that due to the Writers' Strike at the time his further work in film would be on hold and expressed plans for new music.
After being approached by artistic director John McFall in 2007, Big Boi collaborated with the Atlanta Ballet company on a production entitled big. As creative director, Big Boi recruited bandmembers, developed a story line, and worked with choreographer Lauri Stallings to put the project together. The production received good buzz and ran for six performances in April 2010 at the Fox Theatre in Atlanta. It featured him in a starring role as himself, a live band of musicians from the Purple Ribbon label, performances by Sleepy Brown and Janelle Monáe, and syncopated dance sequences set to OutKast hits and tracks intended for Big Boi's solo album. In 2008, he ended his three-year "beef" with rapper and former Purple Ribbon artist Killer Mike.
The album's title is derived from Big Boi's long-time moniker "Sir Lucious Left Foot". In several interviews, he has explained part of it as a reference to the Southern slang phrase "gettin’ out on the good foot", while describing the entire moniker as an indication of maturity, noting it as "my real grown-man persona" and "like my Luke-Skywalker-becoming-a-Jedi persona. Like, I'm just really serious about my craft, I've mastered it, and I'm very skilled at it, and I take pride in making this music". He incorporated the nickname "Chico Dusty" to the album's title as a dedication to his late father, Tony Kearse, who gained it while serving as a fighter pilot in the United States Air Force and Marines. The spelling of luscious in the album's title, Big Boi's moniker, is intended to reflect on its distinctive pronunciation "loo-shuss", which according to Big Boi, is not "the girl name; you call a girl luscious, along the lines of voluptuous".